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Finding the Third Proportional to 1,139.25 and 2,502

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Solution

The third proportional to 1,139.25 and 2,502 is: 5,494.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139.25 : 2,502 = 2,502 : x
  2. Step 2: Convert to fraction form
    1,139.25/2,502 = 2,502/x
  3. Step 3: Cross multiply
    1,139.25x = 2,502 × 2,502
  4. Step 4: Simplify right side
    1,139.25x = 6,260,004
  5. Step 5: Solve for x
    x = 6,260,004/1,139.25
  6. Step 6: Final answer
    x = 5,494.85

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.