[ The ratio of the areas of triangles with a common base or common height ]

In trapezoid $M P Q F$, the bases $M F=24, P Q=4$. The height of the trapezoid is 5. Point $N$ divides the lateral side into segments $M N$ and $N P$, such that $M N=3 N P$.

Find the area of triangle $N Q F$.

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