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Finding the Fourth Proportional to 36,797.80, 55,211.10 and 13,426.60

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Solution

The fourth proportional to 36,797.80, 55,211.10 and 13,426.60 is: 20,145.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,797.80 : 55,211.10 = 13,426.60 : x
  2. Step 2: Convert to fraction form
    36,797.80/55,211.10 = 13,426.60/x
  3. Step 3: Cross multiply
    36,797.80x = 55,211.10 × 13,426.60
  4. Step 4: Simplify right side
    36,797.80x = 741,297,355.26
  5. Step 5: Solve for x
    x = 741,297,355.26/36,797.80
  6. Step 6: Final answer
    x = 20,145.15

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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.