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Finding the Third Proportional to 67 and 96.25

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Solution

The third proportional to 67 and 96.25 is: 138.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    67 : 96.25 = 96.25 : x
  2. Step 2: Convert to fraction form
    67/96.25 = 96.25/x
  3. Step 3: Cross multiply
    67x = 96.25 × 96.25
  4. Step 4: Simplify right side
    67x = 9,264.06
  5. Step 5: Solve for x
    x = 9,264.06/67
  6. Step 6: Final answer
    x = 138.27

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.