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Finding the Third Proportional to 8,331 and 17,916

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Solution

The third proportional to 8,331 and 17,916 is: 38,528.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,331 : 17,916 = 17,916 : x
  2. Step 2: Convert to fraction form
    8,331/17,916 = 17,916/x
  3. Step 3: Cross multiply
    8,331x = 17,916 × 17,916
  4. Step 4: Simplify right side
    8,331x = 320,983,056
  5. Step 5: Solve for x
    x = 320,983,056/8,331
  6. Step 6: Final answer
    x = 38,528.75

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.