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Finding the Fourth Proportional to 36,379.86, 50,203.86 and 20,246.90

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Solution

The fourth proportional to 36,379.86, 50,203.86 and 20,246.90 is: 27,940.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,379.86 : 50,203.86 = 20,246.90 : x
  2. Step 2: Convert to fraction form
    36,379.86/50,203.86 = 20,246.90/x
  3. Step 3: Cross multiply
    36,379.86x = 50,203.86 × 20,246.90
  4. Step 4: Simplify right side
    36,379.86x = 1,016,472,533.03
  5. Step 5: Solve for x
    x = 1,016,472,533.03/36,379.86
  6. Step 6: Final answer
    x = 27,940.53

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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.