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Finding the Third Proportional to 6,331.50 and 13,869

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Solution

The third proportional to 6,331.50 and 13,869 is: 30,379.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,331.50 : 13,869 = 13,869 : x
  2. Step 2: Convert to fraction form
    6,331.50/13,869 = 13,869/x
  3. Step 3: Cross multiply
    6,331.50x = 13,869 × 13,869
  4. Step 4: Simplify right side
    6,331.50x = 192,349,161
  5. Step 5: Solve for x
    x = 192,349,161/6,331.50
  6. Step 6: Final answer
    x = 30,379.71

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.