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Finding the Fourth Proportional to 18,793.94, 28,166.49 and 14,076.90

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Solution

The fourth proportional to 18,793.94, 28,166.49 and 14,076.90 is: 21,097.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,793.94 : 28,166.49 = 14,076.90 : x
  2. Step 2: Convert to fraction form
    18,793.94/28,166.49 = 14,076.90/x
  3. Step 3: Cross multiply
    18,793.94x = 28,166.49 × 14,076.90
  4. Step 4: Simplify right side
    18,793.94x = 396,496,863.08
  5. Step 5: Solve for x
    x = 396,496,863.08/18,793.94
  6. Step 6: Final answer
    x = 21,097.06

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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.