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Finding the Third Proportional to 69,717 and 106,668

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Solution

The third proportional to 69,717 and 106,668 is: 163,203.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,717 : 106,668 = 106,668 : x
  2. Step 2: Convert to fraction form
    69,717/106,668 = 106,668/x
  3. Step 3: Cross multiply
    69,717x = 106,668 × 106,668
  4. Step 4: Simplify right side
    69,717x = 11,378,062,224
  5. Step 5: Solve for x
    x = 11,378,062,224/69,717
  6. Step 6: Final answer
    x = 163,203.55

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.