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Finding the Fourth Proportional to 4,524.76, 6,786.31 and 1,891.55

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Solution

The fourth proportional to 4,524.76, 6,786.31 and 1,891.55 is: 2,836.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,524.76 : 6,786.31 = 1,891.55 : x
  2. Step 2: Convert to fraction form
    4,524.76/6,786.31 = 1,891.55/x
  3. Step 3: Cross multiply
    4,524.76x = 6,786.31 × 1,891.55
  4. Step 4: Simplify right side
    4,524.76x = 12,836,655.14
  5. Step 5: Solve for x
    x = 12,836,655.14/4,524.76
  6. Step 6: Final answer
    x = 2,836.98

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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.