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Finding the Fourth Proportional to 18,599.52, 27,879.12 and 6,912.48

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Solution

The fourth proportional to 18,599.52, 27,879.12 and 6,912.48 is: 10,361.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,599.52 : 27,879.12 = 6,912.48 : x
  2. Step 2: Convert to fraction form
    18,599.52/27,879.12 = 6,912.48/x
  3. Step 3: Cross multiply
    18,599.52x = 27,879.12 × 6,912.48
  4. Step 4: Simplify right side
    18,599.52x = 192,713,859.42
  5. Step 5: Solve for x
    x = 192,713,859.42/18,599.52
  6. Step 6: Final answer
    x = 10,361.23

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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.