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Finding the Fourth Proportional to 18,392.58, 27,549.99 and 15,265.17

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Solution

The fourth proportional to 18,392.58, 27,549.99 and 15,265.17 is: 22,865.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,392.58 : 27,549.99 = 15,265.17 : x
  2. Step 2: Convert to fraction form
    18,392.58/27,549.99 = 15,265.17/x
  3. Step 3: Cross multiply
    18,392.58x = 27,549.99 × 15,265.17
  4. Step 4: Simplify right side
    18,392.58x = 420,555,280.85
  5. Step 5: Solve for x
    x = 420,555,280.85/18,392.58
  6. Step 6: Final answer
    x = 22,865.49

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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.