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Finding the Fourth Proportional to 50,550.90, 69,760.90 and 27,890.82

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Solution

The fourth proportional to 50,550.90, 69,760.90 and 27,890.82 is: 38,489.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,550.90 : 69,760.90 = 27,890.82 : x
  2. Step 2: Convert to fraction form
    50,550.90/69,760.90 = 27,890.82/x
  3. Step 3: Cross multiply
    50,550.90x = 69,760.90 × 27,890.82
  4. Step 4: Simplify right side
    50,550.90x = 1,945,688,704.94
  5. Step 5: Solve for x
    x = 1,945,688,704.94/50,550.90
  6. Step 6: Final answer
    x = 38,489.69

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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.