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Finding the Third Proportional to 47,185.50 and 68,832

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Solution

The third proportional to 47,185.50 and 68,832 is: 100,408.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,185.50 : 68,832 = 68,832 : x
  2. Step 2: Convert to fraction form
    47,185.50/68,832 = 68,832/x
  3. Step 3: Cross multiply
    47,185.50x = 68,832 × 68,832
  4. Step 4: Simplify right side
    47,185.50x = 4,737,844,224
  5. Step 5: Solve for x
    x = 4,737,844,224/47,185.50
  6. Step 6: Final answer
    x = 100,408.90

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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.