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Finding the Fourth Proportional to 23.38, 32.24 and 15.19

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Solution

The fourth proportional to 23.38, 32.24 and 15.19 is: 20.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    23.38 : 32.24 = 15.19 : x
  2. Step 2: Convert to fraction form
    23.38/32.24 = 15.19/x
  3. Step 3: Cross multiply
    23.38x = 32.24 × 15.19
  4. Step 4: Simplify right side
    23.38x = 489.68
  5. Step 5: Solve for x
    x = 489.68/23.38
  6. Step 6: Final answer
    x = 20.95

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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.