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Finding the Third Proportional to 67 and 164.25

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Solution

The third proportional to 67 and 164.25 is: 402.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    67 : 164.25 = 164.25 : x
  2. Step 2: Convert to fraction form
    67/164.25 = 164.25/x
  3. Step 3: Cross multiply
    67x = 164.25 × 164.25
  4. Step 4: Simplify right side
    67x = 26,978.06
  5. Step 5: Solve for x
    x = 26,978.06/67
  6. Step 6: Final answer
    x = 402.66

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These problems maintain the same ratio (2.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.