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Finding the Fourth Proportional to 18.62, 25.52 and 17.54

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Solution

The fourth proportional to 18.62, 25.52 and 17.54 is: 24.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18.62 : 25.52 = 17.54 : x
  2. Step 2: Convert to fraction form
    18.62/25.52 = 17.54/x
  3. Step 3: Cross multiply
    18.62x = 25.52 × 17.54
  4. Step 4: Simplify right side
    18.62x = 447.62
  5. Step 5: Solve for x
    x = 447.62/18.62
  6. Step 6: Final answer
    x = 24.04

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.