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Finding the Fourth Proportional to 17.24, 25.92 and 13.46

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Solution

The fourth proportional to 17.24, 25.92 and 13.46 is: 20.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    17.24 : 25.92 = 13.46 : x
  2. Step 2: Convert to fraction form
    17.24/25.92 = 13.46/x
  3. Step 3: Cross multiply
    17.24x = 25.92 × 13.46
  4. Step 4: Simplify right side
    17.24x = 348.88
  5. Step 5: Solve for x
    x = 348.88/17.24
  6. Step 6: Final answer
    x = 20.24

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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.