document.write( "Question 110118: How do you do porportions? \n" ); document.write( "
Algebra.Com's Answer #80234 by MathLover1(20849)\"\" \"About 
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A proportion is a comparison of ratios.
\n" ); document.write( "It is an equation that states that two ratios are \"equal\", such as\r
\n" ); document.write( "\n" ); document.write( "\"4%2F8+=+1%2F2\"\r
\n" ); document.write( "\n" ); document.write( "Proportions always have an \"EQUAL\" sign!
\n" ); document.write( "A proportion can be written in \"two\" ways:\r
\n" ); document.write( "\n" ); document.write( "\"4%2F8+=+1%2F2\" or \"4+%3A+8+=+1+%3A+2\"\r
\n" ); document.write( "\n" ); document.write( "you read them: \"4 is to 8 as 1 is to 2\"
\n" ); document.write( "In each proportion the\"+first\" and \"last\" term (here 4 and 2) are called the \"extremes\". \r
\n" ); document.write( "\n" ); document.write( "The \"second\" and \"third\" terms (here 8 and 1) are called the \"means\".\r
\n" ); document.write( "\n" ); document.write( "In simple proportions, \"all_+you_+need_+to+_do\" is examine if the fractions \"both+_reduce_+to+_the+_same+_value\"; if yes, then the proportion is \"true\".\r
\n" ); document.write( "\n" ); document.write( "\"4%2F8+=+1%2F2\"…this is a true proportion, since both fractions reduce to 1/2.\r
\n" ); document.write( "\n" ); document.write( "In simple proportions, you can \"use_+this_+same_+approach\" when solving for a missing part of a proportion. \r
\n" ); document.write( "\n" ); document.write( "Remember that both fractions must reduce to the same value
\n" ); document.write( "\"4%2F8+=+x%2F2\"\r
\n" ); document.write( "\n" ); document.write( "\"4%2A2=+x%2A8\"\r
\n" ); document.write( "\n" ); document.write( "\"8+=+x%2A8\"……….\"x=1\"\r
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