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Finding the Fourth Proportional to 8,616.08, 12,922.47 and 3,069.41

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Solution

The fourth proportional to 8,616.08, 12,922.47 and 3,069.41 is: 4,603.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,616.08 : 12,922.47 = 3,069.41 : x
  2. Step 2: Convert to fraction form
    8,616.08/12,922.47 = 3,069.41/x
  3. Step 3: Cross multiply
    8,616.08x = 12,922.47 × 3,069.41
  4. Step 4: Simplify right side
    8,616.08x = 39,664,294.03
  5. Step 5: Solve for x
    x = 39,664,294.03/8,616.08
  6. Step 6: Final answer
    x = 4,603.52

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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.