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Finding the Fourth Proportional to 23.92, 35.82 and 13.75

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Solution

The fourth proportional to 23.92, 35.82 and 13.75 is: 20.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    23.92 : 35.82 = 13.75 : x
  2. Step 2: Convert to fraction form
    23.92/35.82 = 13.75/x
  3. Step 3: Cross multiply
    23.92x = 35.82 × 13.75
  4. Step 4: Simplify right side
    23.92x = 492.44
  5. Step 5: Solve for x
    x = 492.44/23.92
  6. Step 6: Final answer
    x = 20.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.