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Finding the Fourth Proportional to 38.24, 52.82 and 32.12

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Solution

The fourth proportional to 38.24, 52.82 and 32.12 is: 44.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    38.24 : 52.82 = 32.12 : x
  2. Step 2: Convert to fraction form
    38.24/52.82 = 32.12/x
  3. Step 3: Cross multiply
    38.24x = 52.82 × 32.12
  4. Step 4: Simplify right side
    38.24x = 1,696.58
  5. Step 5: Solve for x
    x = 1,696.58/38.24
  6. Step 6: Final answer
    x = 44.37

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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.