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Finding the Third Proportional to 4,057 and 8,339

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Solution

The third proportional to 4,057 and 8,339 is: 17,140.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,057 : 8,339 = 8,339 : x
  2. Step 2: Convert to fraction form
    4,057/8,339 = 8,339/x
  3. Step 3: Cross multiply
    4,057x = 8,339 × 8,339
  4. Step 4: Simplify right side
    4,057x = 69,538,921
  5. Step 5: Solve for x
    x = 69,538,921/4,057
  6. Step 6: Final answer
    x = 17,140.48

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.