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Finding the Third Proportional to 4,027.50 and 8,649

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Solution

The third proportional to 4,027.50 and 8,649 is: 18,573.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,027.50 : 8,649 = 8,649 : x
  2. Step 2: Convert to fraction form
    4,027.50/8,649 = 8,649/x
  3. Step 3: Cross multiply
    4,027.50x = 8,649 × 8,649
  4. Step 4: Simplify right side
    4,027.50x = 74,805,201
  5. Step 5: Solve for x
    x = 74,805,201/4,027.50
  6. Step 6: Final answer
    x = 18,573.61

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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.