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Finding the Third Proportional to 6,781.50 and 13,995

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Solution

The third proportional to 6,781.50 and 13,995 is: 28,881.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,781.50 : 13,995 = 13,995 : x
  2. Step 2: Convert to fraction form
    6,781.50/13,995 = 13,995/x
  3. Step 3: Cross multiply
    6,781.50x = 13,995 × 13,995
  4. Step 4: Simplify right side
    6,781.50x = 195,860,025
  5. Step 5: Solve for x
    x = 195,860,025/6,781.50
  6. Step 6: Final answer
    x = 28,881.52

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.