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Finding the Third Proportional to 171.75 and 335.63

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Solution

The third proportional to 171.75 and 335.63 is: 655.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    171.75 : 335.63 = 335.63 : x
  2. Step 2: Convert to fraction form
    171.75/335.63 = 335.63/x
  3. Step 3: Cross multiply
    171.75x = 335.63 × 335.63
  4. Step 4: Simplify right side
    171.75x = 112,644.14
  5. Step 5: Solve for x
    x = 112,644.14/171.75
  6. Step 6: Final answer
    x = 655.86

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Why These Related Problems?

These problems maintain the same ratio (1.95) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.