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Finding the Fourth Proportional to 8,869,695.80, 13,304,543.70 and 2,479,937.90

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Solution

The fourth proportional to 8,869,695.80, 13,304,543.70 and 2,479,937.90 is: 3,719,906.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,869,695.80 : 13,304,543.70 = 2,479,937.90 : x
  2. Step 2: Convert to fraction form
    8,869,695.80/13,304,543.70 = 2,479,937.90/x
  3. Step 3: Cross multiply
    8,869,695.80x = 13,304,543.70 × 2,479,937.90
  4. Step 4: Simplify right side
    8,869,695.80x = 32,994,442,163,836.23
  5. Step 5: Solve for x
    x = 32,994,442,163,836.23/8,869,695.80
  6. Step 6: Final answer
    x = 3,719,906.85

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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.