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Finding the Third Proportional to 34.25 and 45.75

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Solution

The third proportional to 34.25 and 45.75 is: 61.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    34.25 : 45.75 = 45.75 : x
  2. Step 2: Convert to fraction form
    34.25/45.75 = 45.75/x
  3. Step 3: Cross multiply
    34.25x = 45.75 × 45.75
  4. Step 4: Simplify right side
    34.25x = 2,093.06
  5. Step 5: Solve for x
    x = 2,093.06/34.25
  6. Step 6: Final answer
    x = 61.11

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.