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Finding the Fourth Proportional to 36,861.80, 55,328.34 and 34,863.80

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Solution

The fourth proportional to 36,861.80, 55,328.34 and 34,863.80 is: 52,329.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,861.80 : 55,328.34 = 34,863.80 : x
  2. Step 2: Convert to fraction form
    36,861.80/55,328.34 = 34,863.80/x
  3. Step 3: Cross multiply
    36,861.80x = 55,328.34 × 34,863.80
  4. Step 4: Simplify right side
    36,861.80x = 1,928,956,180.09
  5. Step 5: Solve for x
    x = 1,928,956,180.09/36,861.80
  6. Step 6: Final answer
    x = 52,329.41

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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.