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A man in a canoe is [math]6[/math] miles from the nearest point of the shore of the lake. The shoreline is approximately a straight line and the man wants to reach a point on the shore [math]5[/math] miles from the nearest point. If his rate of paddling is [math]4[/math] miles per hour and he can run [math]5[/math] miles per hour along the shore, where should he land to reach his destination in the shortest possible time?