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Finding the Fourth Proportional to 11,002,476.80, 16,487,968.80 and 8,101,202.60

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Solution

The fourth proportional to 11,002,476.80, 16,487,968.80 and 8,101,202.60 is: 12,140,209.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,002,476.80 : 16,487,968.80 = 8,101,202.60 : x
  2. Step 2: Convert to fraction form
    11,002,476.80/16,487,968.80 = 8,101,202.60/x
  3. Step 3: Cross multiply
    11,002,476.80x = 16,487,968.80 × 8,101,202.60
  4. Step 4: Simplify right side
    11,002,476.80x = 133,572,375,711,278.88
  5. Step 5: Solve for x
    x = 133,572,375,711,278.88/11,002,476.80
  6. Step 6: Final answer
    x = 12,140,209.71

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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.