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Finding the Fourth Proportional to 17,960.92, 26,939.70 and 8,471.05

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Solution

The fourth proportional to 17,960.92, 26,939.70 and 8,471.05 is: 12,705.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,960.92 : 26,939.70 = 8,471.05 : x
  2. Step 2: Convert to fraction form
    17,960.92/26,939.70 = 8,471.05/x
  3. Step 3: Cross multiply
    17,960.92x = 26,939.70 × 8,471.05
  4. Step 4: Simplify right side
    17,960.92x = 228,207,478.34
  5. Step 5: Solve for x
    x = 228,207,478.34/17,960.92
  6. Step 6: Final answer
    x = 12,705.78

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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.