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Finding the Fourth Proportional to 36,520.88, 54,781.52 and 11,896.88

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Solution

The fourth proportional to 36,520.88, 54,781.52 and 11,896.88 is: 17,845.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,520.88 : 54,781.52 = 11,896.88 : x
  2. Step 2: Convert to fraction form
    36,520.88/54,781.52 = 11,896.88/x
  3. Step 3: Cross multiply
    36,520.88x = 54,781.52 × 11,896.88
  4. Step 4: Simplify right side
    36,520.88x = 651,728,836.27
  5. Step 5: Solve for x
    x = 651,728,836.27/36,520.88
  6. Step 6: Final answer
    x = 17,845.38

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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.