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Finding the Fourth Proportional to 24.82, 34.22 and 15.48

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Solution

The fourth proportional to 24.82, 34.22 and 15.48 is: 21.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    24.82 : 34.22 = 15.48 : x
  2. Step 2: Convert to fraction form
    24.82/34.22 = 15.48/x
  3. Step 3: Cross multiply
    24.82x = 34.22 × 15.48
  4. Step 4: Simplify right side
    24.82x = 529.73
  5. Step 5: Solve for x
    x = 529.73/24.82
  6. Step 6: Final answer
    x = 21.34

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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.