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Finding the Fourth Proportional to 22,482, 33,724.62 and 8,631

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Solution

The fourth proportional to 22,482, 33,724.62 and 8,631 is: 12,947.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,482 : 33,724.62 = 8,631 : x
  2. Step 2: Convert to fraction form
    22,482/33,724.62 = 8,631/x
  3. Step 3: Cross multiply
    22,482x = 33,724.62 × 8,631
  4. Step 4: Simplify right side
    22,482x = 291,077,195.22
  5. Step 5: Solve for x
    x = 291,077,195.22/22,482
  6. Step 6: Final answer
    x = 12,947.12

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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.