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Finding the Third Proportional to 63.28 and 96.61

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Solution

The third proportional to 63.28 and 96.61 is: 147.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    63.28 : 96.61 = 96.61 : x
  2. Step 2: Convert to fraction form
    63.28/96.61 = 96.61/x
  3. Step 3: Cross multiply
    63.28x = 96.61 × 96.61
  4. Step 4: Simplify right side
    63.28x = 9,333.37
  5. Step 5: Solve for x
    x = 9,333.37/63.28
  6. Step 6: Final answer
    x = 147.49

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.