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Finding the Third Proportional to 6,919.80 and 18,760.36

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Solution

The third proportional to 6,919.80 and 18,760.36 is: 50,861.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,919.80 : 18,760.36 = 18,760.36 : x
  2. Step 2: Convert to fraction form
    6,919.80/18,760.36 = 18,760.36/x
  3. Step 3: Cross multiply
    6,919.80x = 18,760.36 × 18,760.36
  4. Step 4: Simplify right side
    6,919.80x = 351,951,083.88
  5. Step 5: Solve for x
    x = 351,951,083.88/6,919.80
  6. Step 6: Final answer
    x = 50,861.42

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Why These Related Problems?

These problems maintain the same ratio (2.71) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.