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Finding the Third Proportional to 6,997.50 and 10,500.75

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Solution

The third proportional to 6,997.50 and 10,500.75 is: 15,757.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,997.50 : 10,500.75 = 10,500.75 : x
  2. Step 2: Convert to fraction form
    6,997.50/10,500.75 = 10,500.75/x
  3. Step 3: Cross multiply
    6,997.50x = 10,500.75 × 10,500.75
  4. Step 4: Simplify right side
    6,997.50x = 110,265,750.56
  5. Step 5: Solve for x
    x = 110,265,750.56/6,997.50
  6. Step 6: Final answer
    x = 15,757.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.