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Finding the Fourth Proportional to 36,393.72, 54,503.10 and 20,763.96

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Solution

The fourth proportional to 36,393.72, 54,503.10 and 20,763.96 is: 31,096.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,393.72 : 54,503.10 = 20,763.96 : x
  2. Step 2: Convert to fraction form
    36,393.72/54,503.10 = 20,763.96/x
  3. Step 3: Cross multiply
    36,393.72x = 54,503.10 × 20,763.96
  4. Step 4: Simplify right side
    36,393.72x = 1,131,700,188.28
  5. Step 5: Solve for x
    x = 1,131,700,188.28/36,393.72
  6. Step 6: Final answer
    x = 31,096.03

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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.