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Finding the Third Proportional to 15,690 and 33,567

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Solution

The third proportional to 15,690 and 33,567 is: 71,812.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,690 : 33,567 = 33,567 : x
  2. Step 2: Convert to fraction form
    15,690/33,567 = 33,567/x
  3. Step 3: Cross multiply
    15,690x = 33,567 × 33,567
  4. Step 4: Simplify right side
    15,690x = 1,126,743,489
  5. Step 5: Solve for x
    x = 1,126,743,489/15,690
  6. Step 6: Final answer
    x = 71,812.84

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.