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Finding the Fourth Proportional to 8,834.26, 12,186.21 and 5,516.50

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Solution

The fourth proportional to 8,834.26, 12,186.21 and 5,516.50 is: 7,609.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,834.26 : 12,186.21 = 5,516.50 : x
  2. Step 2: Convert to fraction form
    8,834.26/12,186.21 = 5,516.50/x
  3. Step 3: Cross multiply
    8,834.26x = 12,186.21 × 5,516.50
  4. Step 4: Simplify right side
    8,834.26x = 67,225,227.47
  5. Step 5: Solve for x
    x = 67,225,227.47/8,834.26
  6. Step 6: Final answer
    x = 7,609.60

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