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Finding the Fourth Proportional to 50,144, 69,198.72 and 27,789.44

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Solution

The fourth proportional to 50,144, 69,198.72 and 27,789.44 is: 38,349.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,144 : 69,198.72 = 27,789.44 : x
  2. Step 2: Convert to fraction form
    50,144/69,198.72 = 27,789.44/x
  3. Step 3: Cross multiply
    50,144x = 69,198.72 × 27,789.44
  4. Step 4: Simplify right side
    50,144x = 1,922,993,677.52
  5. Step 5: Solve for x
    x = 1,922,993,677.52/50,144
  6. Step 6: Final answer
    x = 38,349.43

Related Problems

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Double scale
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1.5x scale

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.