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Finding the Third Proportional to 6,872.50 and 14,040.50

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Solution

The third proportional to 6,872.50 and 14,040.50 is: 28,684.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,872.50 : 14,040.50 = 14,040.50 : x
  2. Step 2: Convert to fraction form
    6,872.50/14,040.50 = 14,040.50/x
  3. Step 3: Cross multiply
    6,872.50x = 14,040.50 × 14,040.50
  4. Step 4: Simplify right side
    6,872.50x = 197,135,640.25
  5. Step 5: Solve for x
    x = 197,135,640.25/6,872.50
  6. Step 6: Final answer
    x = 28,684.71

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.