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Finding the Fourth Proportional to 18,628.71, 27,960.62 and 6,793.92

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Solution

The fourth proportional to 18,628.71, 27,960.62 and 6,793.92 is: 10,197.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,628.71 : 27,960.62 = 6,793.92 : x
  2. Step 2: Convert to fraction form
    18,628.71/27,960.62 = 6,793.92/x
  3. Step 3: Cross multiply
    18,628.71x = 27,960.62 × 6,793.92
  4. Step 4: Simplify right side
    18,628.71x = 189,962,215.43
  5. Step 5: Solve for x
    x = 189,962,215.43/18,628.71
  6. Step 6: Final answer
    x = 10,197.28

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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.