In triangle XYZ, the lengths of sides XY, YZ, and XZ are in the ratio of 3:4:5. If the perimeter of triangle XYZ is 48 cm, determine the area of the triangle.

Recall that the area of a triangle can be computed using the formula: $$Area = \frac{1}{2} \times base \times height$$ or by using Heron's formula: $$Area = \sqrt{s(s-a)(s-b)(s-c)$$, where $s$ is the semi-perimeter, and $a$, $b$, and $c$ are the lengths of the sides.