#### Answer

n=81

#### Work Step by Step

To solve for n in the equation $\frac{14}{18}$=$\frac{63}{n}$, we first cross multiply to get the equation
(14)(n)=(63)(18)
14n=1134
Then, to solve for n, we'll divide by 14 on both sides of the equation
$\frac{14n}{14}$=$\frac{1134}{14}$
n=81