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Finding the Third Proportional to 47,187 and 68,833

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Solution

The third proportional to 47,187 and 68,833 is: 100,408.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,187 : 68,833 = 68,833 : x
  2. Step 2: Convert to fraction form
    47,187/68,833 = 68,833/x
  3. Step 3: Cross multiply
    47,187x = 68,833 × 68,833
  4. Step 4: Simplify right side
    47,187x = 4,737,981,889
  5. Step 5: Solve for x
    x = 4,737,981,889/47,187
  6. Step 6: Final answer
    x = 100,408.63

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.