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Finding the Third Proportional to 39,287,722 and 85,711,860

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Solution

The third proportional to 39,287,722 and 85,711,860 is: 186,992,845.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,287,722 : 85,711,860 = 85,711,860 : x
  2. Step 2: Convert to fraction form
    39,287,722/85,711,860 = 85,711,860/x
  3. Step 3: Cross multiply
    39,287,722x = 85,711,860 × 85,711,860
  4. Step 4: Simplify right side
    39,287,722x = 7,346,522,944,659,600
  5. Step 5: Solve for x
    x = 7,346,522,944,659,600/39,287,722
  6. Step 6: Final answer
    x = 186,992,845.87

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.