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Finding the Third Proportional to 20,899,086 and 45,285,756

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Solution

The third proportional to 20,899,086 and 45,285,756 is: 98,128,678.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,899,086 : 45,285,756 = 45,285,756 : x
  2. Step 2: Convert to fraction form
    20,899,086/45,285,756 = 45,285,756/x
  3. Step 3: Cross multiply
    20,899,086x = 45,285,756 × 45,285,756
  4. Step 4: Simplify right side
    20,899,086x = 2,050,799,696,491,536
  5. Step 5: Solve for x
    x = 2,050,799,696,491,536/20,899,086
  6. Step 6: Final answer
    x = 98,128,678.76

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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.