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Finding the Fourth Proportional to 96.57, 133.29 and 63.95

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Solution

The fourth proportional to 96.57, 133.29 and 63.95 is: 88.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.57 : 133.29 = 63.95 : x
  2. Step 2: Convert to fraction form
    96.57/133.29 = 63.95/x
  3. Step 3: Cross multiply
    96.57x = 133.29 × 63.95
  4. Step 4: Simplify right side
    96.57x = 8,523.23
  5. Step 5: Solve for x
    x = 8,523.23/96.57
  6. Step 6: Final answer
    x = 88.26

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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.