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Finding the Third Proportional to 38.88 and 41.75

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Solution

The third proportional to 38.88 and 41.75 is: 44.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    38.88 : 41.75 = 41.75 : x
  2. Step 2: Convert to fraction form
    38.88/41.75 = 41.75/x
  3. Step 3: Cross multiply
    38.88x = 41.75 × 41.75
  4. Step 4: Simplify right side
    38.88x = 1,743.06
  5. Step 5: Solve for x
    x = 1,743.06/38.88
  6. Step 6: Final answer
    x = 44.84

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Why These Related Problems?

These problems maintain the same ratio (1.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.