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Finding the Fourth Proportional to 36,349.98, 50,161.68 and 20,217.20

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Solution

The fourth proportional to 36,349.98, 50,161.68 and 20,217.20 is: 27,899.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,349.98 : 50,161.68 = 20,217.20 : x
  2. Step 2: Convert to fraction form
    36,349.98/50,161.68 = 20,217.20/x
  3. Step 3: Cross multiply
    36,349.98x = 50,161.68 × 20,217.20
  4. Step 4: Simplify right side
    36,349.98x = 1,014,128,716.90
  5. Step 5: Solve for x
    x = 1,014,128,716.90/36,349.98
  6. Step 6: Final answer
    x = 27,899.02

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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.