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Finding the Third Proportional to 1,005 and 2,193

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Solution

The third proportional to 1,005 and 2,193 is: 4,785.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005 : 2,193 = 2,193 : x
  2. Step 2: Convert to fraction form
    1,005/2,193 = 2,193/x
  3. Step 3: Cross multiply
    1,005x = 2,193 × 2,193
  4. Step 4: Simplify right side
    1,005x = 4,809,249
  5. Step 5: Solve for x
    x = 4,809,249/1,005
  6. Step 6: Final answer
    x = 4,785.32

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.