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Finding the Third Proportional to 87,621 and 183,996

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Solution

The third proportional to 87,621 and 183,996 is: 386,374.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,621 : 183,996 = 183,996 : x
  2. Step 2: Convert to fraction form
    87,621/183,996 = 183,996/x
  3. Step 3: Cross multiply
    87,621x = 183,996 × 183,996
  4. Step 4: Simplify right side
    87,621x = 33,854,528,016
  5. Step 5: Solve for x
    x = 33,854,528,016/87,621
  6. Step 6: Final answer
    x = 386,374.59

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.