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Finding the Third Proportional to 36,396 and 76,680

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Solution

The third proportional to 36,396 and 76,680 is: 161,551.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,396 : 76,680 = 76,680 : x
  2. Step 2: Convert to fraction form
    36,396/76,680 = 76,680/x
  3. Step 3: Cross multiply
    36,396x = 76,680 × 76,680
  4. Step 4: Simplify right side
    36,396x = 5,879,822,400
  5. Step 5: Solve for x
    x = 5,879,822,400/36,396
  6. Step 6: Final answer
    x = 161,551.34

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.