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Finding the Fourth Proportional to 8,551.62, 12,829.26 and 2,708.70

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Solution

The fourth proportional to 8,551.62, 12,829.26 and 2,708.70 is: 4,063.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,551.62 : 12,829.26 = 2,708.70 : x
  2. Step 2: Convert to fraction form
    8,551.62/12,829.26 = 2,708.70/x
  3. Step 3: Cross multiply
    8,551.62x = 12,829.26 × 2,708.70
  4. Step 4: Simplify right side
    8,551.62x = 34,750,616.56
  5. Step 5: Solve for x
    x = 34,750,616.56/8,551.62
  6. Step 6: Final answer
    x = 4,063.63

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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.