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Finding the Third Proportional to 3,815.44 and 6,178.78

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Solution

The third proportional to 3,815.44 and 6,178.78 is: 10,006.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.44 : 6,178.78 = 6,178.78 : x
  2. Step 2: Convert to fraction form
    3,815.44/6,178.78 = 6,178.78/x
  3. Step 3: Cross multiply
    3,815.44x = 6,178.78 × 6,178.78
  4. Step 4: Simplify right side
    3,815.44x = 38,177,337.74
  5. Step 5: Solve for x
    x = 38,177,337.74/3,815.44
  6. Step 6: Final answer
    x = 10,006.02

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Why These Related Problems?

These problems maintain the same ratio (1.62) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.