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Finding the Fourth Proportional to 27,299.04, 40,949.04 and 8,578.72

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Solution

The fourth proportional to 27,299.04, 40,949.04 and 8,578.72 is: 12,868.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,299.04 : 40,949.04 = 8,578.72 : x
  2. Step 2: Convert to fraction form
    27,299.04/40,949.04 = 8,578.72/x
  3. Step 3: Cross multiply
    27,299.04x = 40,949.04 × 8,578.72
  4. Step 4: Simplify right side
    27,299.04x = 351,290,348.43
  5. Step 5: Solve for x
    x = 351,290,348.43/27,299.04
  6. Step 6: Final answer
    x = 12,868.23

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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.