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Finding the Third Proportional to 33.75 and 61

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Solution

The third proportional to 33.75 and 61 is: 110.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    33.75 : 61 = 61 : x
  2. Step 2: Convert to fraction form
    33.75/61 = 61/x
  3. Step 3: Cross multiply
    33.75x = 61 × 61
  4. Step 4: Simplify right side
    33.75x = 3,721
  5. Step 5: Solve for x
    x = 3,721/33.75
  6. Step 6: Final answer
    x = 110.25

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Why These Related Problems?

These problems maintain the same ratio (1.81) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.