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Finding the Third Proportional to 1,250 and 2,742

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Solution

The third proportional to 1,250 and 2,742 is: 6,014.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,250 : 2,742 = 2,742 : x
  2. Step 2: Convert to fraction form
    1,250/2,742 = 2,742/x
  3. Step 3: Cross multiply
    1,250x = 2,742 × 2,742
  4. Step 4: Simplify right side
    1,250x = 7,518,564
  5. Step 5: Solve for x
    x = 7,518,564/1,250
  6. Step 6: Final answer
    x = 6,014.85

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.