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Finding the Fourth Proportional to 36,839.42, 50,838.40 and 20,072.42

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Solution

The fourth proportional to 36,839.42, 50,838.40 and 20,072.42 is: 27,699.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,839.42 : 50,838.40 = 20,072.42 : x
  2. Step 2: Convert to fraction form
    36,839.42/50,838.40 = 20,072.42/x
  3. Step 3: Cross multiply
    36,839.42x = 50,838.40 × 20,072.42
  4. Step 4: Simplify right side
    36,839.42x = 1,020,449,716.93
  5. Step 5: Solve for x
    x = 1,020,449,716.93/36,839.42
  6. Step 6: Final answer
    x = 27,699.94

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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.