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Finding the Fourth Proportional to 90,593.82, 135,863.39 and 37,991.61

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Solution

The fourth proportional to 90,593.82, 135,863.39 and 37,991.61 is: 56,975.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,593.82 : 135,863.39 = 37,991.61 : x
  2. Step 2: Convert to fraction form
    90,593.82/135,863.39 = 37,991.61/x
  3. Step 3: Cross multiply
    90,593.82x = 135,863.39 × 37,991.61
  4. Step 4: Simplify right side
    90,593.82x = 5,161,668,926.16
  5. Step 5: Solve for x
    x = 5,161,668,926.16/90,593.82
  6. Step 6: Final answer
    x = 56,975.95

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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.