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Finding the Fourth Proportional to 24.28, 33.51 and 13.92

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Solution

The fourth proportional to 24.28, 33.51 and 13.92 is: 19.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    24.28 : 33.51 = 13.92 : x
  2. Step 2: Convert to fraction form
    24.28/33.51 = 13.92/x
  3. Step 3: Cross multiply
    24.28x = 33.51 × 13.92
  4. Step 4: Simplify right side
    24.28x = 466.46
  5. Step 5: Solve for x
    x = 466.46/24.28
  6. Step 6: Final answer
    x = 19.21

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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.