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Finding the Third Proportional to 1,252.50 and 2,719

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Solution

The third proportional to 1,252.50 and 2,719 is: 5,902.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252.50 : 2,719 = 2,719 : x
  2. Step 2: Convert to fraction form
    1,252.50/2,719 = 2,719/x
  3. Step 3: Cross multiply
    1,252.50x = 2,719 × 2,719
  4. Step 4: Simplify right side
    1,252.50x = 7,392,961
  5. Step 5: Solve for x
    x = 7,392,961/1,252.50
  6. Step 6: Final answer
    x = 5,902.56

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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.