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Finding the Third Proportional to 3,998.25 and 8,192.25

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Solution

The third proportional to 3,998.25 and 8,192.25 is: 16,785.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,998.25 : 8,192.25 = 8,192.25 : x
  2. Step 2: Convert to fraction form
    3,998.25/8,192.25 = 8,192.25/x
  3. Step 3: Cross multiply
    3,998.25x = 8,192.25 × 8,192.25
  4. Step 4: Simplify right side
    3,998.25x = 67,112,960.06
  5. Step 5: Solve for x
    x = 67,112,960.06/3,998.25
  6. Step 6: Final answer
    x = 16,785.58

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.