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Finding the Third Proportional to 36.38 and 66

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Solution

The third proportional to 36.38 and 66 is: 119.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    36.38 : 66 = 66 : x
  2. Step 2: Convert to fraction form
    36.38/66 = 66/x
  3. Step 3: Cross multiply
    36.38x = 66 × 66
  4. Step 4: Simplify right side
    36.38x = 4,356
  5. Step 5: Solve for x
    x = 4,356/36.38
  6. Step 6: Final answer
    x = 119.75

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Why These Related Problems?

These problems maintain the same ratio (1.81) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.