# Chapter 7 - Section 7.2 - Proportion - Exercises - Page 277: 48

$190 commission #### Work Step by Step Create a proportion using ratios of commission:sale.$\frac{\$75\ commission}{\$300\ sale}=\frac{\$x\ commission}{\$760\ sale}$Set the product of the means equal to the product of the extremes and solve for the variable.$300\times x=75\times 760300x=57000300x\div300=57000\div300x=190\$

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