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Finding the Fourth Proportional to 50,272, 69,375.36 and 27,916

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Solution

The fourth proportional to 50,272, 69,375.36 and 27,916 is: 38,524.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,272 : 69,375.36 = 27,916 : x
  2. Step 2: Convert to fraction form
    50,272/69,375.36 = 27,916/x
  3. Step 3: Cross multiply
    50,272x = 69,375.36 × 27,916
  4. Step 4: Simplify right side
    50,272x = 1,936,682,549.76
  5. Step 5: Solve for x
    x = 1,936,682,549.76/50,272
  6. Step 6: Final answer
    x = 38,524.08

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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.