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Finding the Third Proportional to 2,058 and 3,831

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Solution

The third proportional to 2,058 and 3,831 is: 7,131.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,058 : 3,831 = 3,831 : x
  2. Step 2: Convert to fraction form
    2,058/3,831 = 3,831/x
  3. Step 3: Cross multiply
    2,058x = 3,831 × 3,831
  4. Step 4: Simplify right side
    2,058x = 14,676,561
  5. Step 5: Solve for x
    x = 14,676,561/2,058
  6. Step 6: Final answer
    x = 7,131.47

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Why These Related Problems?

These problems maintain the same ratio (1.86) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.