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Finding the Fourth Proportional to 17.46, 26.17 and 15.16

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Solution

The fourth proportional to 17.46, 26.17 and 15.16 is: 22.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    17.46 : 26.17 = 15.16 : x
  2. Step 2: Convert to fraction form
    17.46/26.17 = 15.16/x
  3. Step 3: Cross multiply
    17.46x = 26.17 × 15.16
  4. Step 4: Simplify right side
    17.46x = 396.74
  5. Step 5: Solve for x
    x = 396.74/17.46
  6. Step 6: Final answer
    x = 22.72

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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.