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Finding the Fourth Proportional to 22.97, 34.41 and 12.83

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Solution

The fourth proportional to 22.97, 34.41 and 12.83 is: 19.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    22.97 : 34.41 = 12.83 : x
  2. Step 2: Convert to fraction form
    22.97/34.41 = 12.83/x
  3. Step 3: Cross multiply
    22.97x = 34.41 × 12.83
  4. Step 4: Simplify right side
    22.97x = 441.31
  5. Step 5: Solve for x
    x = 441.31/22.97
  6. Step 6: Final answer
    x = 19.22

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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.