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Finding the Fourth Proportional to 36,909.96, 50,935.68 and 20,142.96

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Solution

The fourth proportional to 36,909.96, 50,935.68 and 20,142.96 is: 27,797.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,909.96 : 50,935.68 = 20,142.96 : x
  2. Step 2: Convert to fraction form
    36,909.96/50,935.68 = 20,142.96/x
  3. Step 3: Cross multiply
    36,909.96x = 50,935.68 × 20,142.96
  4. Step 4: Simplify right side
    36,909.96x = 1,025,995,364.81
  5. Step 5: Solve for x
    x = 1,025,995,364.81/36,909.96
  6. Step 6: Final answer
    x = 27,797.25

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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.