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Finding the Fourth Proportional to 18,602,850.80, 27,904,276.20 and 13,564,002.80

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Solution

The fourth proportional to 18,602,850.80, 27,904,276.20 and 13,564,002.80 is: 20,346,004.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,602,850.80 : 27,904,276.20 = 13,564,002.80 : x
  2. Step 2: Convert to fraction form
    18,602,850.80/27,904,276.20 = 13,564,002.80/x
  3. Step 3: Cross multiply
    18,602,850.80x = 27,904,276.20 × 13,564,002.80
  4. Step 4: Simplify right side
    18,602,850.80x = 378,493,680,508,773.38
  5. Step 5: Solve for x
    x = 378,493,680,508,773.38/18,602,850.80
  6. Step 6: Final answer
    x = 20,346,004.20

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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.