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Finding the Fourth Proportional to 18,449.52, 27,660.94 and 7,195.32

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Solution

The fourth proportional to 18,449.52, 27,660.94 and 7,195.32 is: 10,787.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,449.52 : 27,660.94 = 7,195.32 : x
  2. Step 2: Convert to fraction form
    18,449.52/27,660.94 = 7,195.32/x
  3. Step 3: Cross multiply
    18,449.52x = 27,660.94 × 7,195.32
  4. Step 4: Simplify right side
    18,449.52x = 199,029,415.08
  5. Step 5: Solve for x
    x = 199,029,415.08/18,449.52
  6. Step 6: Final answer
    x = 10,787.78

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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.