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Finding the Third Proportional to 4,997 and 8,881

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Solution

The third proportional to 4,997 and 8,881 is: 15,783.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,997 : 8,881 = 8,881 : x
  2. Step 2: Convert to fraction form
    4,997/8,881 = 8,881/x
  3. Step 3: Cross multiply
    4,997x = 8,881 × 8,881
  4. Step 4: Simplify right side
    4,997x = 78,872,161
  5. Step 5: Solve for x
    x = 78,872,161/4,997
  6. Step 6: Final answer
    x = 15,783.90

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Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.