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Finding the Fourth Proportional to 60,578.43, 90,872.13 and 18,462.13

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Solution

The fourth proportional to 60,578.43, 90,872.13 and 18,462.13 is: 27,694.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,578.43 : 90,872.13 = 18,462.13 : x
  2. Step 2: Convert to fraction form
    60,578.43/90,872.13 = 18,462.13/x
  3. Step 3: Cross multiply
    60,578.43x = 90,872.13 × 18,462.13
  4. Step 4: Simplify right side
    60,578.43x = 1,677,692,815.64
  5. Step 5: Solve for x
    x = 1,677,692,815.64/60,578.43
  6. Step 6: Final answer
    x = 27,694.56

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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.