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Finding the Fourth Proportional to 38.55, 53.17 and 24

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Solution

The fourth proportional to 38.55, 53.17 and 24 is: 33.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38.55 : 53.17 = 24 : x
  2. Step 2: Convert to fraction form
    38.55/53.17 = 24/x
  3. Step 3: Cross multiply
    38.55x = 53.17 × 24
  4. Step 4: Simplify right side
    38.55x = 1,276.08
  5. Step 5: Solve for x
    x = 1,276.08/38.55
  6. Step 6: Final answer
    x = 33.10

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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.