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Finding the Third Proportional to 4,278 and 9,327

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Solution

The third proportional to 4,278 and 9,327 is: 20,334.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,278 : 9,327 = 9,327 : x
  2. Step 2: Convert to fraction form
    4,278/9,327 = 9,327/x
  3. Step 3: Cross multiply
    4,278x = 9,327 × 9,327
  4. Step 4: Simplify right side
    4,278x = 86,992,929
  5. Step 5: Solve for x
    x = 86,992,929/4,278
  6. Step 6: Final answer
    x = 20,334.95

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.