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Finding the Third Proportional to 42,391,782 and 67,235,598

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Solution

The third proportional to 42,391,782 and 67,235,598 is: 106,639,198.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,391,782 : 67,235,598 = 67,235,598 : x
  2. Step 2: Convert to fraction form
    42,391,782/67,235,598 = 67,235,598/x
  3. Step 3: Cross multiply
    42,391,782x = 67,235,598 × 67,235,598
  4. Step 4: Simplify right side
    42,391,782x = 4,520,625,638,417,604
  5. Step 5: Solve for x
    x = 4,520,625,638,417,604/42,391,782
  6. Step 6: Final answer
    x = 106,639,198.10

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.