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Finding the Third Proportional to 21,930,872 and 47,522,782

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Solution

The third proportional to 21,930,872 and 47,522,782 is: 102,978,796.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,930,872 : 47,522,782 = 47,522,782 : x
  2. Step 2: Convert to fraction form
    21,930,872/47,522,782 = 47,522,782/x
  3. Step 3: Cross multiply
    21,930,872x = 47,522,782 × 47,522,782
  4. Step 4: Simplify right side
    21,930,872x = 2,258,414,809,019,524
  5. Step 5: Solve for x
    x = 2,258,414,809,019,524/21,930,872
  6. Step 6: Final answer
    x = 102,978,796.69

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.