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Finding the Fourth Proportional to 8,716.93, 13,074.02 and 7,245.61

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Solution

The fourth proportional to 8,716.93, 13,074.02 and 7,245.61 is: 10,867.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,716.93 : 13,074.02 = 7,245.61 : x
  2. Step 2: Convert to fraction form
    8,716.93/13,074.02 = 7,245.61/x
  3. Step 3: Cross multiply
    8,716.93x = 13,074.02 × 7,245.61
  4. Step 4: Simplify right side
    8,716.93x = 94,729,250.05
  5. Step 5: Solve for x
    x = 94,729,250.05/8,716.93
  6. Step 6: Final answer
    x = 10,867.27

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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.