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Finding the Third Proportional to 4,231 and 9,272

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Solution

The third proportional to 4,231 and 9,272 is: 20,319.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,231 : 9,272 = 9,272 : x
  2. Step 2: Convert to fraction form
    4,231/9,272 = 9,272/x
  3. Step 3: Cross multiply
    4,231x = 9,272 × 9,272
  4. Step 4: Simplify right side
    4,231x = 85,969,984
  5. Step 5: Solve for x
    x = 85,969,984/4,231
  6. Step 6: Final answer
    x = 20,319.07

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.