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Finding the Third Proportional to 33,372 and 67,668

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Solution

The third proportional to 33,372 and 67,668 is: 137,209.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,372 : 67,668 = 67,668 : x
  2. Step 2: Convert to fraction form
    33,372/67,668 = 67,668/x
  3. Step 3: Cross multiply
    33,372x = 67,668 × 67,668
  4. Step 4: Simplify right side
    33,372x = 4,578,958,224
  5. Step 5: Solve for x
    x = 4,578,958,224/33,372
  6. Step 6: Final answer
    x = 137,209.58

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.