Chapter 7 - Section 7.2 - Proportion - Exercises - Page 277: 33

x=37.3

Set the product of the means equal to the product of the extremes and solve for the variable. $48\times56=x \times72$ $2688=72x$ $2688\div72=72x\div72$ $37.\underset\uparrow33333333=x$ Since the digit to the right of the 3rd significant digit is less than 5, round down.