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Finding the Fourth Proportional to 96.35, 132.93 and 54.89

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Solution

The fourth proportional to 96.35, 132.93 and 54.89 is: 75.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.35 : 132.93 = 54.89 : x
  2. Step 2: Convert to fraction form
    96.35/132.93 = 54.89/x
  3. Step 3: Cross multiply
    96.35x = 132.93 × 54.89
  4. Step 4: Simplify right side
    96.35x = 7,295.86
  5. Step 5: Solve for x
    x = 7,295.86/96.35
  6. Step 6: Final answer
    x = 75.72

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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.