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Finding the Fourth Proportional to 8,981,560.80, 13,469,716.80 and 3,223,627.20

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Solution

The fourth proportional to 8,981,560.80, 13,469,716.80 and 3,223,627.20 is: 4,834,498.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,981,560.80 : 13,469,716.80 = 3,223,627.20 : x
  2. Step 2: Convert to fraction form
    8,981,560.80/13,469,716.80 = 3,223,627.20/x
  3. Step 3: Cross multiply
    8,981,560.80x = 13,469,716.80 × 3,223,627.20
  4. Step 4: Simplify right side
    8,981,560.80x = 43,421,345,452,776.97
  5. Step 5: Solve for x
    x = 43,421,345,452,776.97/8,981,560.80
  6. Step 6: Final answer
    x = 4,834,498.86

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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.