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Finding the Fourth Proportional to 18,245.67, 27,369.99 and 5,766.54

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Solution

The fourth proportional to 18,245.67, 27,369.99 and 5,766.54 is: 8,650.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,245.67 : 27,369.99 = 5,766.54 : x
  2. Step 2: Convert to fraction form
    18,245.67/27,369.99 = 5,766.54/x
  3. Step 3: Cross multiply
    18,245.67x = 27,369.99 × 5,766.54
  4. Step 4: Simplify right side
    18,245.67x = 157,830,142.13
  5. Step 5: Solve for x
    x = 157,830,142.13/18,245.67
  6. Step 6: Final answer
    x = 8,650.28

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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.