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Finding the Fourth Proportional to 19,793.94, 29,694.15 and 9,402.18

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Solution

The fourth proportional to 19,793.94, 29,694.15 and 9,402.18 is: 14,104.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,793.94 : 29,694.15 = 9,402.18 : x
  2. Step 2: Convert to fraction form
    19,793.94/29,694.15 = 9,402.18/x
  3. Step 3: Cross multiply
    19,793.94x = 29,694.15 × 9,402.18
  4. Step 4: Simplify right side
    19,793.94x = 279,189,743.25
  5. Step 5: Solve for x
    x = 279,189,743.25/19,793.94
  6. Step 6: Final answer
    x = 14,104.81

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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.