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Finding the Third Proportional to 5,481.50 and 11,887

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Solution

The third proportional to 5,481.50 and 11,887 is: 25,777.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,481.50 : 11,887 = 11,887 : x
  2. Step 2: Convert to fraction form
    5,481.50/11,887 = 11,887/x
  3. Step 3: Cross multiply
    5,481.50x = 11,887 × 11,887
  4. Step 4: Simplify right side
    5,481.50x = 141,300,769
  5. Step 5: Solve for x
    x = 141,300,769/5,481.50
  6. Step 6: Final answer
    x = 25,777.76

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.