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Finding the Third Proportional to 3,994 and 9,391

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Solution

The third proportional to 3,994 and 9,391 is: 22,080.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,994 : 9,391 = 9,391 : x
  2. Step 2: Convert to fraction form
    3,994/9,391 = 9,391/x
  3. Step 3: Cross multiply
    3,994x = 9,391 × 9,391
  4. Step 4: Simplify right side
    3,994x = 88,190,881
  5. Step 5: Solve for x
    x = 88,190,881/3,994
  6. Step 6: Final answer
    x = 22,080.84

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Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.