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Finding the Fourth Proportional to 36,355.92, 50,170.44 and 20,440.20

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Solution

The fourth proportional to 36,355.92, 50,170.44 and 20,440.20 is: 28,207.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,355.92 : 50,170.44 = 20,440.20 : x
  2. Step 2: Convert to fraction form
    36,355.92/50,170.44 = 20,440.20/x
  3. Step 3: Cross multiply
    36,355.92x = 50,170.44 × 20,440.20
  4. Step 4: Simplify right side
    36,355.92x = 1,025,493,827.69
  5. Step 5: Solve for x
    x = 1,025,493,827.69/36,355.92
  6. Step 6: Final answer
    x = 28,207.07

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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.