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Finding the Third Proportional to 33 and 66.38

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Solution

The third proportional to 33 and 66.38 is: 133.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    33 : 66.38 = 66.38 : x
  2. Step 2: Convert to fraction form
    33/66.38 = 66.38/x
  3. Step 3: Cross multiply
    33x = 66.38 × 66.38
  4. Step 4: Simplify right side
    33x = 4,405.64
  5. Step 5: Solve for x
    x = 4,405.64/33
  6. Step 6: Final answer
    x = 133.50

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Why These Related Problems?

These problems maintain the same ratio (2.01) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.