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Finding the Fourth Proportional to 8,846.38, 13,269.78 and 2,921.38

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Solution

The fourth proportional to 8,846.38, 13,269.78 and 2,921.38 is: 4,382.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,846.38 : 13,269.78 = 2,921.38 : x
  2. Step 2: Convert to fraction form
    8,846.38/13,269.78 = 2,921.38/x
  3. Step 3: Cross multiply
    8,846.38x = 13,269.78 × 2,921.38
  4. Step 4: Simplify right side
    8,846.38x = 38,766,069.90
  5. Step 5: Solve for x
    x = 38,766,069.90/8,846.38
  6. Step 6: Final answer
    x = 4,382.14

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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.