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Finding the Third Proportional to 171.75 and 374

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Solution

The third proportional to 171.75 and 374 is: 814.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    171.75 : 374 = 374 : x
  2. Step 2: Convert to fraction form
    171.75/374 = 374/x
  3. Step 3: Cross multiply
    171.75x = 374 × 374
  4. Step 4: Simplify right side
    171.75x = 139,876
  5. Step 5: Solve for x
    x = 139,876/171.75
  6. Step 6: Final answer
    x = 814.42

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.