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Finding the Fourth Proportional to 11,793.40, 17,690.90 and 4,002.80

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Solution

The fourth proportional to 11,793.40, 17,690.90 and 4,002.80 is: 6,004.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,793.40 : 17,690.90 = 4,002.80 : x
  2. Step 2: Convert to fraction form
    11,793.40/17,690.90 = 4,002.80/x
  3. Step 3: Cross multiply
    11,793.40x = 17,690.90 × 4,002.80
  4. Step 4: Simplify right side
    11,793.40x = 70,813,134.52
  5. Step 5: Solve for x
    x = 70,813,134.52/11,793.40
  6. Step 6: Final answer
    x = 6,004.47

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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.