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Finding the Fourth Proportional to 24.15, 36.17 and 16.55

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Solution

The fourth proportional to 24.15, 36.17 and 16.55 is: 24.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    24.15 : 36.17 = 16.55 : x
  2. Step 2: Convert to fraction form
    24.15/36.17 = 16.55/x
  3. Step 3: Cross multiply
    24.15x = 36.17 × 16.55
  4. Step 4: Simplify right side
    24.15x = 598.35
  5. Step 5: Solve for x
    x = 598.35/24.15
  6. Step 6: Final answer
    x = 24.78

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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.