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Finding the Fourth Proportional to 16.44, 22.69 and 9.97

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Solution

The fourth proportional to 16.44, 22.69 and 9.97 is: 13.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.44 : 22.69 = 9.97 : x
  2. Step 2: Convert to fraction form
    16.44/22.69 = 9.97/x
  3. Step 3: Cross multiply
    16.44x = 22.69 × 9.97
  4. Step 4: Simplify right side
    16.44x = 226.22
  5. Step 5: Solve for x
    x = 226.22/16.44
  6. Step 6: Final answer
    x = 13.76

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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.