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Answer

San Francisco, which was one city that grew immensely as a result of the gold rush, had a population of approximately 1000 people in 1848, which grew to an astounding 3500 people in 1850.

Explanation:

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finstagroup13

San Fran grew immensely as a result of the gold rush

It had a population of approximately 1000 people in 1849, which grew to an astounding 3500 people in 1850.