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Finding the Third Proportional to 4,322 and 9,339

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Solution

The third proportional to 4,322 and 9,339 is: 20,179.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,322 : 9,339 = 9,339 : x
  2. Step 2: Convert to fraction form
    4,322/9,339 = 9,339/x
  3. Step 3: Cross multiply
    4,322x = 9,339 × 9,339
  4. Step 4: Simplify right side
    4,322x = 87,216,921
  5. Step 5: Solve for x
    x = 87,216,921/4,322
  6. Step 6: Final answer
    x = 20,179.76

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.