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Finding the Fourth Proportional to 53,844.70, 80,853.45 and 36,391.90

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Solution

The fourth proportional to 53,844.70, 80,853.45 and 36,391.90 is: 54,646.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,844.70 : 80,853.45 = 36,391.90 : x
  2. Step 2: Convert to fraction form
    53,844.70/80,853.45 = 36,391.90/x
  3. Step 3: Cross multiply
    53,844.70x = 80,853.45 × 36,391.90
  4. Step 4: Simplify right side
    53,844.70x = 2,942,410,667.06
  5. Step 5: Solve for x
    x = 2,942,410,667.06/53,844.70
  6. Step 6: Final answer
    x = 54,646.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.