document.write( "Question 175111: Which one of the following statements expresses a true proportion? 1. 2:3 = 3:2
\n" ); document.write( "2. 14:6 = 28:18
\n" ); document.write( "3. 3:5 = 12:20
\n" ); document.write( "4. 42:7 = 6:2
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Algebra.Com's Answer #130194 by Alan3354(69443)\"\" \"About 
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Which one of the following statements expresses a true proportion? 1. 2:3 = 3:2
\n" ); document.write( "2. 14:6 = 28:18
\n" ); document.write( "3. 3:5 = 12:20
\n" ); document.write( "4. 42:7 = 6:2
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\n" ); document.write( "Only #3 does.\r
\n" ); document.write( "\n" ); document.write( "Multiply the outsides by the insides (means times extremes). They have to be equal if it's a proportion.
\n" ); document.write( "For #3, 3*20 = 5*12
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