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Finding the Fourth Proportional to 41.61, 61.98 and 41.52

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Solution

The fourth proportional to 41.61, 61.98 and 41.52 is: 61.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    41.61 : 61.98 = 41.52 : x
  2. Step 2: Convert to fraction form
    41.61/61.98 = 41.52/x
  3. Step 3: Cross multiply
    41.61x = 61.98 × 41.52
  4. Step 4: Simplify right side
    41.61x = 2,573.41
  5. Step 5: Solve for x
    x = 2,573.41/41.61
  6. Step 6: Final answer
    x = 61.85

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.