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Finding the Fourth Proportional to 8,453.56, 12,677.02 and 3,519.88

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Solution

The fourth proportional to 8,453.56, 12,677.02 and 3,519.88 is: 5,278.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,453.56 : 12,677.02 = 3,519.88 : x
  2. Step 2: Convert to fraction form
    8,453.56/12,677.02 = 3,519.88/x
  3. Step 3: Cross multiply
    8,453.56x = 12,677.02 × 3,519.88
  4. Step 4: Simplify right side
    8,453.56x = 44,621,589.16
  5. Step 5: Solve for x
    x = 44,621,589.16/8,453.56
  6. Step 6: Final answer
    x = 5,278.44

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1.5x scale

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.