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Finding the Third Proportional to 171.75 and 265

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Solution

The third proportional to 171.75 and 265 is: 408.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    171.75 : 265 = 265 : x
  2. Step 2: Convert to fraction form
    171.75/265 = 265/x
  3. Step 3: Cross multiply
    171.75x = 265 × 265
  4. Step 4: Simplify right side
    171.75x = 70,225
  5. Step 5: Solve for x
    x = 70,225/171.75
  6. Step 6: Final answer
    x = 408.88

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.