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Finding the Third Proportional to 1,771.50 and 2,589

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Solution

The third proportional to 1,771.50 and 2,589 is: 3,783.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,771.50 : 2,589 = 2,589 : x
  2. Step 2: Convert to fraction form
    1,771.50/2,589 = 2,589/x
  3. Step 3: Cross multiply
    1,771.50x = 2,589 × 2,589
  4. Step 4: Simplify right side
    1,771.50x = 6,702,921
  5. Step 5: Solve for x
    x = 6,702,921/1,771.50
  6. Step 6: Final answer
    x = 3,783.75

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.