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Finding the Third Proportional to 2,831 and 3,804

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Solution

The third proportional to 2,831 and 3,804 is: 5,111.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,831 : 3,804 = 3,804 : x
  2. Step 2: Convert to fraction form
    2,831/3,804 = 3,804/x
  3. Step 3: Cross multiply
    2,831x = 3,804 × 3,804
  4. Step 4: Simplify right side
    2,831x = 14,470,416
  5. Step 5: Solve for x
    x = 14,470,416/2,831
  6. Step 6: Final answer
    x = 5,111.42

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.