He is 6 inches too short this year because 54 - 48 = <<54-48=6>>6
He will naturally grow 4 inches taller because 12 x (1/3) = <<12*(1/3)=4>>4
He needs to grow 2 inches from hanging because 6 - 4 = <<6-4=2>>2
He needs to hang for 24 hours because 2 / (1/12) = <<2/(1/12)=24>>24
He needs to hang for 2 hours a month because 24 / 12 = <<24/12=2>>2
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