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Finding the Fourth Proportional to 18,036.15, 24,890.83 and 10,868.31

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Solution

The fourth proportional to 18,036.15, 24,890.83 and 10,868.31 is: 14,998.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,036.15 : 24,890.83 = 10,868.31 : x
  2. Step 2: Convert to fraction form
    18,036.15/24,890.83 = 10,868.31/x
  3. Step 3: Cross multiply
    18,036.15x = 24,890.83 × 10,868.31
  4. Step 4: Simplify right side
    18,036.15x = 270,521,229.43
  5. Step 5: Solve for x
    x = 270,521,229.43/18,036.15
  6. Step 6: Final answer
    x = 14,998.84

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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.