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Finding the Third Proportional to 66.75 and 92.06

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Solution

The third proportional to 66.75 and 92.06 is: 126.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    66.75 : 92.06 = 92.06 : x
  2. Step 2: Convert to fraction form
    66.75/92.06 = 92.06/x
  3. Step 3: Cross multiply
    66.75x = 92.06 × 92.06
  4. Step 4: Simplify right side
    66.75x = 8,475.50
  5. Step 5: Solve for x
    x = 8,475.50/66.75
  6. Step 6: Final answer
    x = 126.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.