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Finding the Third Proportional to 33,349.50 and 71,631

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Solution

The third proportional to 33,349.50 and 71,631 is: 153,855.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,349.50 : 71,631 = 71,631 : x
  2. Step 2: Convert to fraction form
    33,349.50/71,631 = 71,631/x
  3. Step 3: Cross multiply
    33,349.50x = 71,631 × 71,631
  4. Step 4: Simplify right side
    33,349.50x = 5,131,000,161
  5. Step 5: Solve for x
    x = 5,131,000,161/33,349.50
  6. Step 6: Final answer
    x = 153,855.38

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.