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Finding the Fourth Proportional to 41.12, 61.59 and 40.67

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Solution

The fourth proportional to 41.12, 61.59 and 40.67 is: 60.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    41.12 : 61.59 = 40.67 : x
  2. Step 2: Convert to fraction form
    41.12/61.59 = 40.67/x
  3. Step 3: Cross multiply
    41.12x = 61.59 × 40.67
  4. Step 4: Simplify right side
    41.12x = 2,504.56
  5. Step 5: Solve for x
    x = 2,504.56/41.12
  6. Step 6: Final answer
    x = 60.90

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.