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Finding the Third Proportional to 5,715.88 and 8,589

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Solution

The third proportional to 5,715.88 and 8,589 is: 12,906.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,715.88 : 8,589 = 8,589 : x
  2. Step 2: Convert to fraction form
    5,715.88/8,589 = 8,589/x
  3. Step 3: Cross multiply
    5,715.88x = 8,589 × 8,589
  4. Step 4: Simplify right side
    5,715.88x = 73,770,921
  5. Step 5: Solve for x
    x = 73,770,921/5,715.88
  6. Step 6: Final answer
    x = 12,906.32

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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.