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Finding the Fourth Proportional to 22.99, 34.50 and 13.97

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Solution

The fourth proportional to 22.99, 34.50 and 13.97 is: 20.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    22.99 : 34.50 = 13.97 : x
  2. Step 2: Convert to fraction form
    22.99/34.50 = 13.97/x
  3. Step 3: Cross multiply
    22.99x = 34.50 × 13.97
  4. Step 4: Simplify right side
    22.99x = 481.97
  5. Step 5: Solve for x
    x = 481.97/22.99
  6. Step 6: Final answer
    x = 20.96

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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.