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Finding the Fourth Proportional to 18,454.41, 27,659.94 and 8,572.86

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Solution

The fourth proportional to 18,454.41, 27,659.94 and 8,572.86 is: 12,849.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,454.41 : 27,659.94 = 8,572.86 : x
  2. Step 2: Convert to fraction form
    18,454.41/27,659.94 = 8,572.86/x
  3. Step 3: Cross multiply
    18,454.41x = 27,659.94 × 8,572.86
  4. Step 4: Simplify right side
    18,454.41x = 237,124,793.23
  5. Step 5: Solve for x
    x = 237,124,793.23/18,454.41
  6. Step 6: Final answer
    x = 12,849.22

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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.