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Finding the Fourth Proportional to 9.43, 14.17 and 9.25

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Solution

The fourth proportional to 9.43, 14.17 and 9.25 is: 13.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9.43 : 14.17 = 9.25 : x
  2. Step 2: Convert to fraction form
    9.43/14.17 = 9.25/x
  3. Step 3: Cross multiply
    9.43x = 14.17 × 9.25
  4. Step 4: Simplify right side
    9.43x = 131.07
  5. Step 5: Solve for x
    x = 131.07/9.43
  6. Step 6: Final answer
    x = 13.90

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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.