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Finding the Third Proportional to 2,616.50 and 3,925

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Solution

The third proportional to 2,616.50 and 3,925 is: 5,887.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,616.50 : 3,925 = 3,925 : x
  2. Step 2: Convert to fraction form
    2,616.50/3,925 = 3,925/x
  3. Step 3: Cross multiply
    2,616.50x = 3,925 × 3,925
  4. Step 4: Simplify right side
    2,616.50x = 15,405,625
  5. Step 5: Solve for x
    x = 15,405,625/2,616.50
  6. Step 6: Final answer
    x = 5,887.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.