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Finding the Fourth Proportional to 36,874.41, 55,311.51 and 9,172.41

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Solution

The fourth proportional to 36,874.41, 55,311.51 and 9,172.41 is: 13,758.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,874.41 : 55,311.51 = 9,172.41 : x
  2. Step 2: Convert to fraction form
    36,874.41/55,311.51 = 9,172.41/x
  3. Step 3: Cross multiply
    36,874.41x = 55,311.51 × 9,172.41
  4. Step 4: Simplify right side
    36,874.41x = 507,339,847.44
  5. Step 5: Solve for x
    x = 507,339,847.44/36,874.41
  6. Step 6: Final answer
    x = 13,758.59

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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.