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Finding the Fourth Proportional to 18,472,598.70, 27,661,658.85 and 13,654,200.30

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Solution

The fourth proportional to 18,472,598.70, 27,661,658.85 and 13,654,200.30 is: 20,446,383.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,472,598.70 : 27,661,658.85 = 13,654,200.30 : x
  2. Step 2: Convert to fraction form
    18,472,598.70/27,661,658.85 = 13,654,200.30/x
  3. Step 3: Cross multiply
    18,472,598.70x = 27,661,658.85 × 13,654,200.30
  4. Step 4: Simplify right side
    18,472,598.70x = 377,697,830,568,167.69
  5. Step 5: Solve for x
    x = 377,697,830,568,167.69/18,472,598.70
  6. Step 6: Final answer
    x = 20,446,383.14

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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.