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Finding the Third Proportional to 1,137 and 2,442.75

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Solution

The third proportional to 1,137 and 2,442.75 is: 5,248.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137 : 2,442.75 = 2,442.75 : x
  2. Step 2: Convert to fraction form
    1,137/2,442.75 = 2,442.75/x
  3. Step 3: Cross multiply
    1,137x = 2,442.75 × 2,442.75
  4. Step 4: Simplify right side
    1,137x = 5,967,027.56
  5. Step 5: Solve for x
    x = 5,967,027.56/1,137
  6. Step 6: Final answer
    x = 5,248.05

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.