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Finding the Fourth Proportional to 36,909.59, 50,935.22 and 20,142.59

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Solution

The fourth proportional to 36,909.59, 50,935.22 and 20,142.59 is: 27,796.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,909.59 : 50,935.22 = 20,142.59 : x
  2. Step 2: Convert to fraction form
    36,909.59/50,935.22 = 20,142.59/x
  3. Step 3: Cross multiply
    36,909.59x = 50,935.22 × 20,142.59
  4. Step 4: Simplify right side
    36,909.59x = 1,025,967,316.33
  5. Step 5: Solve for x
    x = 1,025,967,316.33/36,909.59
  6. Step 6: Final answer
    x = 27,796.77

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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.