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Finding the Fourth Proportional to 8,869,609.80, 13,304,414.70 and 2,479,851.90

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Solution

The fourth proportional to 8,869,609.80, 13,304,414.70 and 2,479,851.90 is: 3,719,777.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,869,609.80 : 13,304,414.70 = 2,479,851.90 : x
  2. Step 2: Convert to fraction form
    8,869,609.80/13,304,414.70 = 2,479,851.90/x
  3. Step 3: Cross multiply
    8,869,609.80x = 13,304,414.70 × 2,479,851.90
  4. Step 4: Simplify right side
    8,869,609.80x = 32,992,978,072,182.93
  5. Step 5: Solve for x
    x = 32,992,978,072,182.93/8,869,609.80
  6. Step 6: Final answer
    x = 3,719,777.85

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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.