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Finding the Fourth Proportional to 18,399.19, 25,391.48 and 10,441.75

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Solution

The fourth proportional to 18,399.19, 25,391.48 and 10,441.75 is: 14,409.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,399.19 : 25,391.48 = 10,441.75 : x
  2. Step 2: Convert to fraction form
    18,399.19/25,391.48 = 10,441.75/x
  3. Step 3: Cross multiply
    18,399.19x = 25,391.48 × 10,441.75
  4. Step 4: Simplify right side
    18,399.19x = 265,131,486.29
  5. Step 5: Solve for x
    x = 265,131,486.29/18,399.19
  6. Step 6: Final answer
    x = 14,409.95

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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.