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Finding the Third Proportional to 3,928.88 and 8,550.38

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Solution

The third proportional to 3,928.88 and 8,550.38 is: 18,608.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928.88 : 8,550.38 = 8,550.38 : x
  2. Step 2: Convert to fraction form
    3,928.88/8,550.38 = 8,550.38/x
  3. Step 3: Cross multiply
    3,928.88x = 8,550.38 × 8,550.38
  4. Step 4: Simplify right side
    3,928.88x = 73,108,912.64
  5. Step 5: Solve for x
    x = 73,108,912.64/3,928.88
  6. Step 6: Final answer
    x = 18,608.10

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.