Irregular Hexagons $A$ and $B$ are geometrically similar. The shortest sides are $4$ inches and $3$ inches, respectively. If the area of hexagon $A$ is $48in^2$, what is the area of hexagon $B$?
I know the answer is $27 in^2$, but how do you get that?
Because if corresponding linear dimensions of $A$ and $B$ are in $4:3$ ratio, then their areas are in $4^2:3^2$ ratio.