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Finding the Fourth Proportional to 26,540.68, 39,810.84 and 8,072.68

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Solution

The fourth proportional to 26,540.68, 39,810.84 and 8,072.68 is: 12,108.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,540.68 : 39,810.84 = 8,072.68 : x
  2. Step 2: Convert to fraction form
    26,540.68/39,810.84 = 8,072.68/x
  3. Step 3: Cross multiply
    26,540.68x = 39,810.84 × 8,072.68
  4. Step 4: Simplify right side
    26,540.68x = 321,380,171.85
  5. Step 5: Solve for x
    x = 321,380,171.85/26,540.68
  6. Step 6: Final answer
    x = 12,108.97

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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.