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Finding the Fourth Proportional to 18,309.20, 25,265.04 and 10,352.12

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Solution

The fourth proportional to 18,309.20, 25,265.04 and 10,352.12 is: 14,284.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,309.20 : 25,265.04 = 10,352.12 : x
  2. Step 2: Convert to fraction form
    18,309.20/25,265.04 = 10,352.12/x
  3. Step 3: Cross multiply
    18,309.20x = 25,265.04 × 10,352.12
  4. Step 4: Simplify right side
    18,309.20x = 261,546,725.88
  5. Step 5: Solve for x
    x = 261,546,725.88/18,309.20
  6. Step 6: Final answer
    x = 14,284.99

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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.