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Finding the Fourth Proportional to 12,449.52, 18,674.46 and 3,684.69

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Solution

The fourth proportional to 12,449.52, 18,674.46 and 3,684.69 is: 5,527.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,449.52 : 18,674.46 = 3,684.69 : x
  2. Step 2: Convert to fraction form
    12,449.52/18,674.46 = 3,684.69/x
  3. Step 3: Cross multiply
    12,449.52x = 18,674.46 × 3,684.69
  4. Step 4: Simplify right side
    12,449.52x = 68,809,596.02
  5. Step 5: Solve for x
    x = 68,809,596.02/12,449.52
  6. Step 6: Final answer
    x = 5,527.09

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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.