document.write( "Question 392816: solve for x in proportion
\n" ); document.write( "3 over x = 20 over 7
\n" ); document.write( "7 over 12 = x over 30
\n" ); document.write( "11 over 3 = x over 8\r
\n" ); document.write( "\n" ); document.write( "how do i solve these problems?
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Algebra.Com's Answer #278844 by richard1234(7193)\"\" \"About 
You can put this solution on YOUR website!
For the first one, we have\r
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\n" ); document.write( "\n" ); document.write( "\"3%2Fx+=+20%2F7\"\r
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\n" ); document.write( "\n" ); document.write( "Cross multiply to obtain \"20x+=+21\" --> \"x+=+21%2F20\"\r
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\n" ); document.write( "\n" ); document.write( "Use the same method for the other two problems.
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