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Finding the Fourth Proportional to 49,728, 68,625.18 and 27,372

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Solution

The fourth proportional to 49,728, 68,625.18 and 27,372 is: 37,773.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,728 : 68,625.18 = 27,372 : x
  2. Step 2: Convert to fraction form
    49,728/68,625.18 = 27,372/x
  3. Step 3: Cross multiply
    49,728x = 68,625.18 × 27,372
  4. Step 4: Simplify right side
    49,728x = 1,878,408,426.96
  5. Step 5: Solve for x
    x = 1,878,408,426.96/49,728
  6. Step 6: Final answer
    x = 37,773.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.