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Finding the Third Proportional to 5,982 and 8,781

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Solution

The third proportional to 5,982 and 8,781 is: 12,889.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,982 : 8,781 = 8,781 : x
  2. Step 2: Convert to fraction form
    5,982/8,781 = 8,781/x
  3. Step 3: Cross multiply
    5,982x = 8,781 × 8,781
  4. Step 4: Simplify right side
    5,982x = 77,105,961
  5. Step 5: Solve for x
    x = 77,105,961/5,982
  6. Step 6: Final answer
    x = 12,889.66

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.