Question 1168793
<font color=black size=3>
(1 inch)/(3 miles) = (6 inches)/(x miles)


1/3 = 6/x


1*x = 3*6 ... cross multiply


x = 18


Six inches on the map represent 18 miles in real life.


Note: the proportion 1/3 = 6/x is one way of many other options to solve this problem. You could apply the reciprocal to both sides to get the same thing. Or you could have 1/6 = 3/x and you'd get the same answer. 
</font>