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Finding the Third Proportional to 33.75 and 38.13

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Solution

The third proportional to 33.75 and 38.13 is: 43.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    33.75 : 38.13 = 38.13 : x
  2. Step 2: Convert to fraction form
    33.75/38.13 = 38.13/x
  3. Step 3: Cross multiply
    33.75x = 38.13 × 38.13
  4. Step 4: Simplify right side
    33.75x = 1,453.52
  5. Step 5: Solve for x
    x = 1,453.52/33.75
  6. Step 6: Final answer
    x = 43.07

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Why These Related Problems?

These problems maintain the same ratio (1.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.