# Chapter 7 - Section 7.2 - Proportion - Exercises - Page 276: 5

a) 7 and w b) x and z c) 7w d) xz

#### Work Step by Step

The means are the 2nd and 3rd terms. The extremes are the 1st and 4th terms. $7\times w=7w$ $x \times z=xz$

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