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Finding the Fourth Proportional to 17,631.10, 26,422.62 and 8,872.03

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Solution

The fourth proportional to 17,631.10, 26,422.62 and 8,872.03 is: 13,295.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,631.10 : 26,422.62 = 8,872.03 : x
  2. Step 2: Convert to fraction form
    17,631.10/26,422.62 = 8,872.03/x
  3. Step 3: Cross multiply
    17,631.10x = 26,422.62 × 8,872.03
  4. Step 4: Simplify right side
    17,631.10x = 234,422,277.32
  5. Step 5: Solve for x
    x = 234,422,277.32/17,631.10
  6. Step 6: Final answer
    x = 13,295.95

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