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Finding the Third Proportional to 36.94 and 66.75

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Solution

The third proportional to 36.94 and 66.75 is: 120.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    36.94 : 66.75 = 66.75 : x
  2. Step 2: Convert to fraction form
    36.94/66.75 = 66.75/x
  3. Step 3: Cross multiply
    36.94x = 66.75 × 66.75
  4. Step 4: Simplify right side
    36.94x = 4,455.56
  5. Step 5: Solve for x
    x = 4,455.56/36.94
  6. Step 6: Final answer
    x = 120.62

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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.