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Finding the Third Proportional to 20,624,720 and 45,215,564

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Solution

The third proportional to 20,624,720 and 45,215,564 is: 99,126,059.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,624,720 : 45,215,564 = 45,215,564 : x
  2. Step 2: Convert to fraction form
    20,624,720/45,215,564 = 45,215,564/x
  3. Step 3: Cross multiply
    20,624,720x = 45,215,564 × 45,215,564
  4. Step 4: Simplify right side
    20,624,720x = 2,044,447,227,838,096
  5. Step 5: Solve for x
    x = 2,044,447,227,838,096/20,624,720
  6. Step 6: Final answer
    x = 99,126,059.79

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.