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April 16, 2014

April 16, 2014

Posted by **Anonymous** on Tuesday, March 15, 2011 at 10:30pm.

- proportion -
**MathMate**, Tuesday, March 15, 2011 at 11:04pm16 over 18 =20 over x

16/18 = 20/x

cross multiply to get:

x=20*18/16=...

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