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Finding the Fourth Proportional to 53,589.62, 80,385.11 and 36,945.20

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Solution

The fourth proportional to 53,589.62, 80,385.11 and 36,945.20 is: 55,418.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,589.62 : 80,385.11 = 36,945.20 : x
  2. Step 2: Convert to fraction form
    53,589.62/80,385.11 = 36,945.20/x
  3. Step 3: Cross multiply
    53,589.62x = 80,385.11 × 36,945.20
  4. Step 4: Simplify right side
    53,589.62x = 2,969,843,379.32
  5. Step 5: Solve for x
    x = 2,969,843,379.32/53,589.62
  6. Step 6: Final answer
    x = 55,418.26

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1.5x scale

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.