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Finding the Fourth Proportional to 33.92, 46.80 and 24.20

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Solution

The fourth proportional to 33.92, 46.80 and 24.20 is: 33.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    33.92 : 46.80 = 24.20 : x
  2. Step 2: Convert to fraction form
    33.92/46.80 = 24.20/x
  3. Step 3: Cross multiply
    33.92x = 46.80 × 24.20
  4. Step 4: Simplify right side
    33.92x = 1,132.44
  5. Step 5: Solve for x
    x = 1,132.44/33.92
  6. Step 6: Final answer
    x = 33.39

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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.