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Finding the Fourth Proportional to 36,806.78, 50,793.35 and 20,039.78

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Solution

The fourth proportional to 36,806.78, 50,793.35 and 20,039.78 is: 27,654.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,806.78 : 50,793.35 = 20,039.78 : x
  2. Step 2: Convert to fraction form
    36,806.78/50,793.35 = 20,039.78/x
  3. Step 3: Cross multiply
    36,806.78x = 50,793.35 × 20,039.78
  4. Step 4: Simplify right side
    36,806.78x = 1,017,887,355.60
  5. Step 5: Solve for x
    x = 1,017,887,355.60/36,806.78
  6. Step 6: Final answer
    x = 27,654.89

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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.