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Finding the Third Proportional to 3,356 and 7,826

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Solution

The third proportional to 3,356 and 7,826 is: 18,249.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,356 : 7,826 = 7,826 : x
  2. Step 2: Convert to fraction form
    3,356/7,826 = 7,826/x
  3. Step 3: Cross multiply
    3,356x = 7,826 × 7,826
  4. Step 4: Simplify right side
    3,356x = 61,246,276
  5. Step 5: Solve for x
    x = 61,246,276/3,356
  6. Step 6: Final answer
    x = 18,249.78

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Why These Related Problems?

These problems maintain the same ratio (2.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.