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Finding the Fourth Proportional to 8,716.62, 13,074.81 and 3,169.74

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Solution

The fourth proportional to 8,716.62, 13,074.81 and 3,169.74 is: 4,754.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,716.62 : 13,074.81 = 3,169.74 : x
  2. Step 2: Convert to fraction form
    8,716.62/13,074.81 = 3,169.74/x
  3. Step 3: Cross multiply
    8,716.62x = 13,074.81 × 3,169.74
  4. Step 4: Simplify right side
    8,716.62x = 41,443,748.25
  5. Step 5: Solve for x
    x = 41,443,748.25/8,716.62
  6. Step 6: Final answer
    x = 4,754.57

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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.