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Finding the Third Proportional to 1,249.17 and 2,047.78

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Solution

The third proportional to 1,249.17 and 2,047.78 is: 3,356.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249.17 : 2,047.78 = 2,047.78 : x
  2. Step 2: Convert to fraction form
    1,249.17/2,047.78 = 2,047.78/x
  3. Step 3: Cross multiply
    1,249.17x = 2,047.78 × 2,047.78
  4. Step 4: Simplify right side
    1,249.17x = 4,193,408.05
  5. Step 5: Solve for x
    x = 4,193,408.05/1,249.17
  6. Step 6: Final answer
    x = 3,356.95

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Why These Related Problems?

These problems maintain the same ratio (1.64) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.