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Finding the Third Proportional to 36,774 and 79,947

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Solution

The third proportional to 36,774 and 79,947 is: 173,805.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,774 : 79,947 = 79,947 : x
  2. Step 2: Convert to fraction form
    36,774/79,947 = 79,947/x
  3. Step 3: Cross multiply
    36,774x = 79,947 × 79,947
  4. Step 4: Simplify right side
    36,774x = 6,391,522,809
  5. Step 5: Solve for x
    x = 6,391,522,809/36,774
  6. Step 6: Final answer
    x = 173,805.48

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.