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Finding the Fourth Proportional to 96.56, 133.20 and 62

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Solution

The fourth proportional to 96.56, 133.20 and 62 is: 85.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.56 : 133.20 = 62 : x
  2. Step 2: Convert to fraction form
    96.56/133.20 = 62/x
  3. Step 3: Cross multiply
    96.56x = 133.20 × 62
  4. Step 4: Simplify right side
    96.56x = 8,258.40
  5. Step 5: Solve for x
    x = 8,258.40/96.56
  6. Step 6: Final answer
    x = 85.53

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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.