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Finding the Fourth Proportional to 67.46, 100.96 and 36.53

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Solution

The fourth proportional to 67.46, 100.96 and 36.53 is: 54.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    67.46 : 100.96 = 36.53 : x
  2. Step 2: Convert to fraction form
    67.46/100.96 = 36.53/x
  3. Step 3: Cross multiply
    67.46x = 100.96 × 36.53
  4. Step 4: Simplify right side
    67.46x = 3,687.56
  5. Step 5: Solve for x
    x = 3,687.56/67.46
  6. Step 6: Final answer
    x = 54.67

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Why These Related Problems?

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