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Finding the Fourth Proportional to 96.53, 133.29 and 67.02

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Solution

The fourth proportional to 96.53, 133.29 and 67.02 is: 92.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.53 : 133.29 = 67.02 : x
  2. Step 2: Convert to fraction form
    96.53/133.29 = 67.02/x
  3. Step 3: Cross multiply
    96.53x = 133.29 × 67.02
  4. Step 4: Simplify right side
    96.53x = 8,933.10
  5. Step 5: Solve for x
    x = 8,933.10/96.53
  6. Step 6: Final answer
    x = 92.54

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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.