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Finding the Third Proportional to 36,157.50 and 77,871.38

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Solution

The third proportional to 36,157.50 and 77,871.38 is: 167,709.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,157.50 : 77,871.38 = 77,871.38 : x
  2. Step 2: Convert to fraction form
    36,157.50/77,871.38 = 77,871.38/x
  3. Step 3: Cross multiply
    36,157.50x = 77,871.38 × 77,871.38
  4. Step 4: Simplify right side
    36,157.50x = 6,063,951,044.39
  5. Step 5: Solve for x
    x = 6,063,951,044.39/36,157.50
  6. Step 6: Final answer
    x = 167,709.36

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.