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Finding the Fourth Proportional to 17,884.44, 26,787.78 and 8,631

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Solution

The fourth proportional to 17,884.44, 26,787.78 and 8,631 is: 12,927.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,884.44 : 26,787.78 = 8,631 : x
  2. Step 2: Convert to fraction form
    17,884.44/26,787.78 = 8,631/x
  3. Step 3: Cross multiply
    17,884.44x = 26,787.78 × 8,631
  4. Step 4: Simplify right side
    17,884.44x = 231,205,329.18
  5. Step 5: Solve for x
    x = 231,205,329.18/17,884.44
  6. Step 6: Final answer
    x = 12,927.74

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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.