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Finding the Third Proportional to 127.75 and 175

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Solution

The third proportional to 127.75 and 175 is: 239.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    127.75 : 175 = 175 : x
  2. Step 2: Convert to fraction form
    127.75/175 = 175/x
  3. Step 3: Cross multiply
    127.75x = 175 × 175
  4. Step 4: Simplify right side
    127.75x = 30,625
  5. Step 5: Solve for x
    x = 30,625/127.75
  6. Step 6: Final answer
    x = 239.73

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.