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Finding the Fourth Proportional to 17,983.80, 26,951.40 and 12,043.80

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Solution

The fourth proportional to 17,983.80, 26,951.40 and 12,043.80 is: 18,049.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,983.80 : 26,951.40 = 12,043.80 : x
  2. Step 2: Convert to fraction form
    17,983.80/26,951.40 = 12,043.80/x
  3. Step 3: Cross multiply
    17,983.80x = 26,951.40 × 12,043.80
  4. Step 4: Simplify right side
    17,983.80x = 324,597,271.32
  5. Step 5: Solve for x
    x = 324,597,271.32/17,983.80
  6. Step 6: Final answer
    x = 18,049.43

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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.