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Finding the Third Proportional to 43,227,578 and 66,861,372

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Solution

The third proportional to 43,227,578 and 66,861,372 is: 103,416,459.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,227,578 : 66,861,372 = 66,861,372 : x
  2. Step 2: Convert to fraction form
    43,227,578/66,861,372 = 66,861,372/x
  3. Step 3: Cross multiply
    43,227,578x = 66,861,372 × 66,861,372
  4. Step 4: Simplify right side
    43,227,578x = 4,470,443,065,722,384
  5. Step 5: Solve for x
    x = 4,470,443,065,722,384/43,227,578
  6. Step 6: Final answer
    x = 103,416,459.41

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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.