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Finding the Fourth Proportional to 18,793.19, 28,154.98 and 9,422.27

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Solution

The fourth proportional to 18,793.19, 28,154.98 and 9,422.27 is: 14,115.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,793.19 : 28,154.98 = 9,422.27 : x
  2. Step 2: Convert to fraction form
    18,793.19/28,154.98 = 9,422.27/x
  3. Step 3: Cross multiply
    18,793.19x = 28,154.98 × 9,422.27
  4. Step 4: Simplify right side
    18,793.19x = 265,283,659.07
  5. Step 5: Solve for x
    x = 265,283,659.07/18,793.19
  6. Step 6: Final answer
    x = 14,115.95

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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.