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Finding the Fourth Proportional to 7,843.04, 11,766.01 and 2,578.35

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Solution

The fourth proportional to 7,843.04, 11,766.01 and 2,578.35 is: 3,868.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,843.04 : 11,766.01 = 2,578.35 : x
  2. Step 2: Convert to fraction form
    7,843.04/11,766.01 = 2,578.35/x
  3. Step 3: Cross multiply
    7,843.04x = 11,766.01 × 2,578.35
  4. Step 4: Simplify right side
    7,843.04x = 30,336,885.44
  5. Step 5: Solve for x
    x = 30,336,885.44/7,843.04
  6. Step 6: Final answer
    x = 3,868.00

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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.