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Finding the Third Proportional to 27.25 and 35.75

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Solution

The third proportional to 27.25 and 35.75 is: 46.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    27.25 : 35.75 = 35.75 : x
  2. Step 2: Convert to fraction form
    27.25/35.75 = 35.75/x
  3. Step 3: Cross multiply
    27.25x = 35.75 × 35.75
  4. Step 4: Simplify right side
    27.25x = 1,278.06
  5. Step 5: Solve for x
    x = 1,278.06/27.25
  6. Step 6: Final answer
    x = 46.90

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.