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Finding the Fourth Proportional to 18,425.36, 27,651 and 8,040.08

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Solution

The fourth proportional to 18,425.36, 27,651 and 8,040.08 is: 12,065.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,425.36 : 27,651 = 8,040.08 : x
  2. Step 2: Convert to fraction form
    18,425.36/27,651 = 8,040.08/x
  3. Step 3: Cross multiply
    18,425.36x = 27,651 × 8,040.08
  4. Step 4: Simplify right side
    18,425.36x = 222,316,252.08
  5. Step 5: Solve for x
    x = 222,316,252.08/18,425.36
  6. Step 6: Final answer
    x = 12,065.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.