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Finding the Fourth Proportional to 96.92, 133.76 and 53.27

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Solution

The fourth proportional to 96.92, 133.76 and 53.27 is: 73.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.92 : 133.76 = 53.27 : x
  2. Step 2: Convert to fraction form
    96.92/133.76 = 53.27/x
  3. Step 3: Cross multiply
    96.92x = 133.76 × 53.27
  4. Step 4: Simplify right side
    96.92x = 7,124.46
  5. Step 5: Solve for x
    x = 7,124.46/96.92
  6. Step 6: Final answer
    x = 73.51

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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.