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Finding the Fourth Proportional to 9.67, 13.33 and 7.24

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Solution

The fourth proportional to 9.67, 13.33 and 7.24 is: 9.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    9.67 : 13.33 = 7.24 : x
  2. Step 2: Convert to fraction form
    9.67/13.33 = 7.24/x
  3. Step 3: Cross multiply
    9.67x = 13.33 × 7.24
  4. Step 4: Simplify right side
    9.67x = 96.46
  5. Step 5: Solve for x
    x = 96.46/9.67
  6. Step 6: Final answer
    x = 9.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.