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Finding the Third Proportional to 1,994 and 4,381

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Solution

The third proportional to 1,994 and 4,381 is: 9,625.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,994 : 4,381 = 4,381 : x
  2. Step 2: Convert to fraction form
    1,994/4,381 = 4,381/x
  3. Step 3: Cross multiply
    1,994x = 4,381 × 4,381
  4. Step 4: Simplify right side
    1,994x = 19,193,161
  5. Step 5: Solve for x
    x = 19,193,161/1,994
  6. Step 6: Final answer
    x = 9,625.46

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.