A ladder leans against a vertical wall, forming a right triangle with the ground. The base of the ladder is 7 feet from the wall, and the top of the ladder reaches 24 feet up the wall. If the angle the ladder makes with the ground is $\theta$, what is the value of $\sin (\theta )$?

(Assume the ground is level and the wall is perpendicular to the ground, similar to the triangle shown in the figure where $\theta$ corresponds to angle A.)