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Finding the Fourth Proportional to 8,578.08, 12,872.04 and 4,629.33

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Solution

The fourth proportional to 8,578.08, 12,872.04 and 4,629.33 is: 6,946.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,578.08 : 12,872.04 = 4,629.33 : x
  2. Step 2: Convert to fraction form
    8,578.08/12,872.04 = 4,629.33/x
  3. Step 3: Cross multiply
    8,578.08x = 12,872.04 × 4,629.33
  4. Step 4: Simplify right side
    8,578.08x = 59,588,920.93
  5. Step 5: Solve for x
    x = 59,588,920.93/8,578.08
  6. Step 6: Final answer
    x = 6,946.65

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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.