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Finding the Fourth Proportional to 5,651.80, 8,472.54 and 2,186.44

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Solution

The fourth proportional to 5,651.80, 8,472.54 and 2,186.44 is: 3,277.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,651.80 : 8,472.54 = 2,186.44 : x
  2. Step 2: Convert to fraction form
    5,651.80/8,472.54 = 2,186.44/x
  3. Step 3: Cross multiply
    5,651.80x = 8,472.54 × 2,186.44
  4. Step 4: Simplify right side
    5,651.80x = 18,524,700.36
  5. Step 5: Solve for x
    x = 18,524,700.36/5,651.80
  6. Step 6: Final answer
    x = 3,277.66

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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.