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Finding the Fourth Proportional to 96.29, 132.87 and 54.84

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Solution

The fourth proportional to 96.29, 132.87 and 54.84 is: 75.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.29 : 132.87 = 54.84 : x
  2. Step 2: Convert to fraction form
    96.29/132.87 = 54.84/x
  3. Step 3: Cross multiply
    96.29x = 132.87 × 54.84
  4. Step 4: Simplify right side
    96.29x = 7,286.59
  5. Step 5: Solve for x
    x = 7,286.59/96.29
  6. Step 6: Final answer
    x = 75.67

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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.