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July 31, 2014

July 31, 2014

Posted by **kRISTIN** on Saturday, October 3, 2009 at 7:43am.

- MATH -
**Reiny**, Saturday, October 3, 2009 at 9:47am3 gallons/$5.37 = 8 gallons/$14.32

(you can easily test if a proportion that you wrote is true by taking the cross-products. These cross-products should be equal.

i.e. 3x14.32 = 8x5.37 )

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