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Finding the Fourth Proportional to 8,546,974.80, 12,820,462.20 and 2,481,694.80

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Solution

The fourth proportional to 8,546,974.80, 12,820,462.20 and 2,481,694.80 is: 3,722,542.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,546,974.80 : 12,820,462.20 = 2,481,694.80 : x
  2. Step 2: Convert to fraction form
    8,546,974.80/12,820,462.20 = 2,481,694.80/x
  3. Step 3: Cross multiply
    8,546,974.80x = 12,820,462.20 × 2,481,694.80
  4. Step 4: Simplify right side
    8,546,974.80x = 31,816,474,375,336.55
  5. Step 5: Solve for x
    x = 31,816,474,375,336.55/8,546,974.80
  6. Step 6: Final answer
    x = 3,722,542.20

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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.