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Finding the Third Proportional to 31,365,393 and 66,469,059

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Solution

The third proportional to 31,365,393 and 66,469,059 is: 140,860,208.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,365,393 : 66,469,059 = 66,469,059 : x
  2. Step 2: Convert to fraction form
    31,365,393/66,469,059 = 66,469,059/x
  3. Step 3: Cross multiply
    31,365,393x = 66,469,059 × 66,469,059
  4. Step 4: Simplify right side
    31,365,393x = 4,418,135,804,345,481
  5. Step 5: Solve for x
    x = 4,418,135,804,345,481/31,365,393
  6. Step 6: Final answer
    x = 140,860,208.71

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.