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Finding the Third Proportional to 6,291 and 13,331.50

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Solution

The third proportional to 6,291 and 13,331.50 is: 28,251.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,291 : 13,331.50 = 13,331.50 : x
  2. Step 2: Convert to fraction form
    6,291/13,331.50 = 13,331.50/x
  3. Step 3: Cross multiply
    6,291x = 13,331.50 × 13,331.50
  4. Step 4: Simplify right side
    6,291x = 177,728,892.25
  5. Step 5: Solve for x
    x = 177,728,892.25/6,291
  6. Step 6: Final answer
    x = 28,251.29

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.