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Finding the Third Proportional to 5,518.13 and 8,299.97

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Solution

The third proportional to 5,518.13 and 8,299.97 is: 12,484.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.13 : 8,299.97 = 8,299.97 : x
  2. Step 2: Convert to fraction form
    5,518.13/8,299.97 = 8,299.97/x
  3. Step 3: Cross multiply
    5,518.13x = 8,299.97 × 8,299.97
  4. Step 4: Simplify right side
    5,518.13x = 68,889,481.25
  5. Step 5: Solve for x
    x = 68,889,481.25/5,518.13
  6. Step 6: Final answer
    x = 12,484.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.