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Finding the Third Proportional to 29,331 and 45,405

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Solution

The third proportional to 29,331 and 45,405 is: 70,287.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,331 : 45,405 = 45,405 : x
  2. Step 2: Convert to fraction form
    29,331/45,405 = 45,405/x
  3. Step 3: Cross multiply
    29,331x = 45,405 × 45,405
  4. Step 4: Simplify right side
    29,331x = 2,061,614,025
  5. Step 5: Solve for x
    x = 2,061,614,025/29,331
  6. Step 6: Final answer
    x = 70,287.89

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.