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Finding the Third Proportional to 3,699,538.31 and 8,071,374.09

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Solution

The third proportional to 3,699,538.31 and 8,071,374.09 is: 17,609,516.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,699,538.31 : 8,071,374.09 = 8,071,374.09 : x
  2. Step 2: Convert to fraction form
    3,699,538.31/8,071,374.09 = 8,071,374.09/x
  3. Step 3: Cross multiply
    3,699,538.31x = 8,071,374.09 × 8,071,374.09
  4. Step 4: Simplify right side
    3,699,538.31x = 65,147,079,761,258.63
  5. Step 5: Solve for x
    x = 65,147,079,761,258.63/3,699,538.31
  6. Step 6: Final answer
    x = 17,609,516.18

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.