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Finding the Fourth Proportional to 23,989.68, 33,105.06 and 13,379.13

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Solution

The fourth proportional to 23,989.68, 33,105.06 and 13,379.13 is: 18,462.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,989.68 : 33,105.06 = 13,379.13 : x
  2. Step 2: Convert to fraction form
    23,989.68/33,105.06 = 13,379.13/x
  3. Step 3: Cross multiply
    23,989.68x = 33,105.06 × 13,379.13
  4. Step 4: Simplify right side
    23,989.68x = 442,916,901.40
  5. Step 5: Solve for x
    x = 442,916,901.40/23,989.68
  6. Step 6: Final answer
    x = 18,462.81

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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.