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Finding the Fourth Proportional to 9.48, 14.22 and 7.97

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Solution

The fourth proportional to 9.48, 14.22 and 7.97 is: 11.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    9.48 : 14.22 = 7.97 : x
  2. Step 2: Convert to fraction form
    9.48/14.22 = 7.97/x
  3. Step 3: Cross multiply
    9.48x = 14.22 × 7.97
  4. Step 4: Simplify right side
    9.48x = 113.33
  5. Step 5: Solve for x
    x = 113.33/9.48
  6. Step 6: Final answer
    x = 11.96

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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.