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Finding the Fourth Proportional to 18,398,149.60, 27,597,224.40 and 11,205,981.40

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Solution

The fourth proportional to 18,398,149.60, 27,597,224.40 and 11,205,981.40 is: 16,808,972.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,398,149.60 : 27,597,224.40 = 11,205,981.40 : x
  2. Step 2: Convert to fraction form
    18,398,149.60/27,597,224.40 = 11,205,981.40/x
  3. Step 3: Cross multiply
    18,398,149.60x = 27,597,224.40 × 11,205,981.40
  4. Step 4: Simplify right side
    18,398,149.60x = 309,253,983,318,026.12
  5. Step 5: Solve for x
    x = 309,253,983,318,026.12/18,398,149.60
  6. Step 6: Final answer
    x = 16,808,972.10

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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.