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Finding the Fourth Proportional to 17.26, 25.82 and 12.44

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Solution

The fourth proportional to 17.26, 25.82 and 12.44 is: 18.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    17.26 : 25.82 = 12.44 : x
  2. Step 2: Convert to fraction form
    17.26/25.82 = 12.44/x
  3. Step 3: Cross multiply
    17.26x = 25.82 × 12.44
  4. Step 4: Simplify right side
    17.26x = 321.20
  5. Step 5: Solve for x
    x = 321.20/17.26
  6. Step 6: Final answer
    x = 18.61

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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.