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Finding the Fourth Proportional to 8,813.85, 12,163.04 and 4,834.95

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Solution

The fourth proportional to 8,813.85, 12,163.04 and 4,834.95 is: 6,672.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,813.85 : 12,163.04 = 4,834.95 : x
  2. Step 2: Convert to fraction form
    8,813.85/12,163.04 = 4,834.95/x
  3. Step 3: Cross multiply
    8,813.85x = 12,163.04 × 4,834.95
  4. Step 4: Simplify right side
    8,813.85x = 58,807,690.25
  5. Step 5: Solve for x
    x = 58,807,690.25/8,813.85
  6. Step 6: Final answer
    x = 6,672.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.