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Finding the Third Proportional to 1,201.50 and 2,589.25

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Solution

The third proportional to 1,201.50 and 2,589.25 is: 5,579.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,201.50 : 2,589.25 = 2,589.25 : x
  2. Step 2: Convert to fraction form
    1,201.50/2,589.25 = 2,589.25/x
  3. Step 3: Cross multiply
    1,201.50x = 2,589.25 × 2,589.25
  4. Step 4: Simplify right side
    1,201.50x = 6,704,215.56
  5. Step 5: Solve for x
    x = 6,704,215.56/1,201.50
  6. Step 6: Final answer
    x = 5,579.87

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.