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Finding the Third Proportional to 3,661,203.80 and 7,873,387.31

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Solution

The third proportional to 3,661,203.80 and 7,873,387.31 is: 16,931,651.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,661,203.80 : 7,873,387.31 = 7,873,387.31 : x
  2. Step 2: Convert to fraction form
    3,661,203.80/7,873,387.31 = 7,873,387.31/x
  3. Step 3: Cross multiply
    3,661,203.80x = 7,873,387.31 × 7,873,387.31
  4. Step 4: Simplify right side
    3,661,203.80x = 61,990,227,772,635.97
  5. Step 5: Solve for x
    x = 61,990,227,772,635.97/3,661,203.80
  6. Step 6: Final answer
    x = 16,931,651.78

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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.