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Finding the Fourth Proportional to 24.55, 33.88 and 14.85

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Solution

The fourth proportional to 24.55, 33.88 and 14.85 is: 20.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    24.55 : 33.88 = 14.85 : x
  2. Step 2: Convert to fraction form
    24.55/33.88 = 14.85/x
  3. Step 3: Cross multiply
    24.55x = 33.88 × 14.85
  4. Step 4: Simplify right side
    24.55x = 502.95
  5. Step 5: Solve for x
    x = 502.95/24.55
  6. Step 6: Final answer
    x = 20.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.