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Finding the Third Proportional to 21,687,357 and 28,913,250.75

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Solution

The third proportional to 21,687,357 and 28,913,250.75 is: 38,546,701.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,687,357 : 28,913,250.75 = 28,913,250.75 : x
  2. Step 2: Convert to fraction form
    21,687,357/28,913,250.75 = 28,913,250.75/x
  3. Step 3: Cross multiply
    21,687,357x = 28,913,250.75 × 28,913,250.75
  4. Step 4: Simplify right side
    21,687,357x = 835,976,068,932,375.50
  5. Step 5: Solve for x
    x = 835,976,068,932,375.50/21,687,357
  6. Step 6: Final answer
    x = 38,546,701.15

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.