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Finding the Fourth Proportional to 13,299.78, 18,344.99 and 8,192.68

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Solution

The fourth proportional to 13,299.78, 18,344.99 and 8,192.68 is: 11,300.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,299.78 : 18,344.99 = 8,192.68 : x
  2. Step 2: Convert to fraction form
    13,299.78/18,344.99 = 8,192.68/x
  3. Step 3: Cross multiply
    13,299.78x = 18,344.99 × 8,192.68
  4. Step 4: Simplify right side
    13,299.78x = 150,294,632.67
  5. Step 5: Solve for x
    x = 150,294,632.67/13,299.78
  6. Step 6: Final answer
    x = 11,300.54

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.