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Finding the Fourth Proportional to 26,617.75, 39,926.64 and 8,149.75

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Solution

The fourth proportional to 26,617.75, 39,926.64 and 8,149.75 is: 12,224.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,617.75 : 39,926.64 = 8,149.75 : x
  2. Step 2: Convert to fraction form
    26,617.75/39,926.64 = 8,149.75/x
  3. Step 3: Cross multiply
    26,617.75x = 39,926.64 × 8,149.75
  4. Step 4: Simplify right side
    26,617.75x = 325,392,134.34
  5. Step 5: Solve for x
    x = 325,392,134.34/26,617.75
  6. Step 6: Final answer
    x = 12,224.63

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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.