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Finding the Third Proportional to 165 and 179.25

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Solution

The third proportional to 165 and 179.25 is: 194.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    165 : 179.25 = 179.25 : x
  2. Step 2: Convert to fraction form
    165/179.25 = 179.25/x
  3. Step 3: Cross multiply
    165x = 179.25 × 179.25
  4. Step 4: Simplify right side
    165x = 32,130.56
  5. Step 5: Solve for x
    x = 32,130.56/165
  6. Step 6: Final answer
    x = 194.73

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.