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Finding the Fourth Proportional to 36,379.44, 50,059.80 and 30,391.92

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Solution

The fourth proportional to 36,379.44, 50,059.80 and 30,391.92 is: 41,820.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,379.44 : 50,059.80 = 30,391.92 : x
  2. Step 2: Convert to fraction form
    36,379.44/50,059.80 = 30,391.92/x
  3. Step 3: Cross multiply
    36,379.44x = 50,059.80 × 30,391.92
  4. Step 4: Simplify right side
    36,379.44x = 1,521,413,436.82
  5. Step 5: Solve for x
    x = 1,521,413,436.82/36,379.44
  6. Step 6: Final answer
    x = 41,820.69

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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.