Given the following scenario, calculate the child's expected weight on their first birthday and explain the principle you used to arrive at your answer.

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An infant's birth weight typically doubles by the age of six months and triples within the first year. By the time a child reaches two years old, their weight will have quadrupled, which corresponds to an expected weight of 20 to 40 pounds.

Weight Development in Infancy and Early Childhood

A healthy infant is born weighing 7 pounds. Based on typical developmental patterns for weight gain, what is the most likely expected weight for this child on their first birthday?

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