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Finding the Fourth Proportional to 31.97, 44.15 and 24.22

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Solution

The fourth proportional to 31.97, 44.15 and 24.22 is: 33.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31.97 : 44.15 = 24.22 : x
  2. Step 2: Convert to fraction form
    31.97/44.15 = 24.22/x
  3. Step 3: Cross multiply
    31.97x = 44.15 × 24.22
  4. Step 4: Simplify right side
    31.97x = 1,069.08
  5. Step 5: Solve for x
    x = 1,069.08/31.97
  6. Step 6: Final answer
    x = 33.44

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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.