Sean has 12 cylindrical containers filled with sand, each of which has a radius of 4 centimeters. He wants to transfer his sand into some new cylindrical containers, which are the same height but have a radius of 8 centimeters. How many new containers will Sean need?
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<|im_start|>user
Sean has 12 cylindrical containers filled with sand, each of which has a radius of 4 centimeters. He wants to transfer his sand into some new cylindrical containers, which are the same height but have a radius of 8 centimeters. How many new containers will Sean need?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
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Sean has 12 cylindrical containers filled with sand, each of which has a radius of 4 centimeters. He wants to transfer his sand into some new cylindrical containers, which are the same height but have a radius of 8 centimeters. How many new containers will Sean need?
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