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Finding the Fourth Proportional to 18,333.65, 25,299.68 and 10,376.31

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Solution

The fourth proportional to 18,333.65, 25,299.68 and 10,376.31 is: 14,318.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,333.65 : 25,299.68 = 10,376.31 : x
  2. Step 2: Convert to fraction form
    18,333.65/25,299.68 = 10,376.31/x
  3. Step 3: Cross multiply
    18,333.65x = 25,299.68 × 10,376.31
  4. Step 4: Simplify right side
    18,333.65x = 262,517,365.57
  5. Step 5: Solve for x
    x = 262,517,365.57/18,333.65
  6. Step 6: Final answer
    x = 14,318.88

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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.