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Finding the Fourth Proportional to 18,604.80, 27,910.80 and 8,216.52

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Solution

The fourth proportional to 18,604.80, 27,910.80 and 8,216.52 is: 12,326.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,604.80 : 27,910.80 = 8,216.52 : x
  2. Step 2: Convert to fraction form
    18,604.80/27,910.80 = 8,216.52/x
  3. Step 3: Cross multiply
    18,604.80x = 27,910.80 × 8,216.52
  4. Step 4: Simplify right side
    18,604.80x = 229,329,646.42
  5. Step 5: Solve for x
    x = 229,329,646.42/18,604.80
  6. Step 6: Final answer
    x = 12,326.37

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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.