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Finding the Fourth Proportional to 8,517.58, 12,776.91 and 2,674.42

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Solution

The fourth proportional to 8,517.58, 12,776.91 and 2,674.42 is: 4,011.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,517.58 : 12,776.91 = 2,674.42 : x
  2. Step 2: Convert to fraction form
    8,517.58/12,776.91 = 2,674.42/x
  3. Step 3: Cross multiply
    8,517.58x = 12,776.91 × 2,674.42
  4. Step 4: Simplify right side
    8,517.58x = 34,170,823.64
  5. Step 5: Solve for x
    x = 34,170,823.64/8,517.58
  6. Step 6: Final answer
    x = 4,011.80

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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.