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Finding the Fourth Proportional to 16,631, 22,950.82 and 9,179

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Solution

The fourth proportional to 16,631, 22,950.82 and 9,179 is: 12,667.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,631 : 22,950.82 = 9,179 : x
  2. Step 2: Convert to fraction form
    16,631/22,950.82 = 9,179/x
  3. Step 3: Cross multiply
    16,631x = 22,950.82 × 9,179
  4. Step 4: Simplify right side
    16,631x = 210,665,576.78
  5. Step 5: Solve for x
    x = 210,665,576.78/16,631
  6. Step 6: Final answer
    x = 12,667.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.