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Finding the Fourth Proportional to 18,800.94, 28,194.92 and 7,704.48

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Solution

The fourth proportional to 18,800.94, 28,194.92 and 7,704.48 is: 11,554.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,800.94 : 28,194.92 = 7,704.48 : x
  2. Step 2: Convert to fraction form
    18,800.94/28,194.92 = 7,704.48/x
  3. Step 3: Cross multiply
    18,800.94x = 28,194.92 × 7,704.48
  4. Step 4: Simplify right side
    18,800.94x = 217,227,197.24
  5. Step 5: Solve for x
    x = 217,227,197.24/18,800.94
  6. Step 6: Final answer
    x = 11,554.06

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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.