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Finding the Fourth Proportional to 9.57, 14.28 and 9.27

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Solution

The fourth proportional to 9.57, 14.28 and 9.27 is: 13.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9.57 : 14.28 = 9.27 : x
  2. Step 2: Convert to fraction form
    9.57/14.28 = 9.27/x
  3. Step 3: Cross multiply
    9.57x = 14.28 × 9.27
  4. Step 4: Simplify right side
    9.57x = 132.38
  5. Step 5: Solve for x
    x = 132.38/9.57
  6. Step 6: Final answer
    x = 13.83

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.