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Finding the Third Proportional to 36,218.50 and 78,467

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Solution

The third proportional to 36,218.50 and 78,467 is: 169,997.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,218.50 : 78,467 = 78,467 : x
  2. Step 2: Convert to fraction form
    36,218.50/78,467 = 78,467/x
  3. Step 3: Cross multiply
    36,218.50x = 78,467 × 78,467
  4. Step 4: Simplify right side
    36,218.50x = 6,157,070,089
  5. Step 5: Solve for x
    x = 6,157,070,089/36,218.50
  6. Step 6: Final answer
    x = 169,997.93

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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.