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Finding the Third Proportional to 36,561 and 78,951

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Solution

The third proportional to 36,561 and 78,951 is: 170,489.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,561 : 78,951 = 78,951 : x
  2. Step 2: Convert to fraction form
    36,561/78,951 = 78,951/x
  3. Step 3: Cross multiply
    36,561x = 78,951 × 78,951
  4. Step 4: Simplify right side
    36,561x = 6,233,260,401
  5. Step 5: Solve for x
    x = 6,233,260,401/36,561
  6. Step 6: Final answer
    x = 170,489.33

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.