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Finding the Fourth Proportional to 11,752,891.90, 17,629,337.85 and 11,752,891.90

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Solution

The fourth proportional to 11,752,891.90, 17,629,337.85 and 11,752,891.90 is: 17,629,337.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,752,891.90 : 17,629,337.85 = 11,752,891.90 : x
  2. Step 2: Convert to fraction form
    11,752,891.90/17,629,337.85 = 11,752,891.90/x
  3. Step 3: Cross multiply
    11,752,891.90x = 17,629,337.85 × 11,752,891.90
  4. Step 4: Simplify right side
    11,752,891.90x = 207,195,702,019,628.44
  5. Step 5: Solve for x
    x = 207,195,702,019,628.44/11,752,891.90
  6. Step 6: Final answer
    x = 17,629,337.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.