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Finding the Fourth Proportional to 9.57, 14.24 and 9.43

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Solution

The fourth proportional to 9.57, 14.24 and 9.43 is: 14.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9.57 : 14.24 = 9.43 : x
  2. Step 2: Convert to fraction form
    9.57/14.24 = 9.43/x
  3. Step 3: Cross multiply
    9.57x = 14.24 × 9.43
  4. Step 4: Simplify right side
    9.57x = 134.28
  5. Step 5: Solve for x
    x = 134.28/9.57
  6. Step 6: Final answer
    x = 14.03

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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.