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Finding the Fourth Proportional to 8,716.57, 13,073.46 and 7,245.23

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Solution

The fourth proportional to 8,716.57, 13,073.46 and 7,245.23 is: 10,866.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,716.57 : 13,073.46 = 7,245.23 : x
  2. Step 2: Convert to fraction form
    8,716.57/13,073.46 = 7,245.23/x
  3. Step 3: Cross multiply
    8,716.57x = 13,073.46 × 7,245.23
  4. Step 4: Simplify right side
    8,716.57x = 94,720,224.60
  5. Step 5: Solve for x
    x = 94,720,224.60/8,716.57
  6. Step 6: Final answer
    x = 10,866.69

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.