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Finding the Fourth Proportional to 26,606.67, 39,910.05 and 8,138.67

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Solution

The fourth proportional to 26,606.67, 39,910.05 and 8,138.67 is: 12,208.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,606.67 : 39,910.05 = 8,138.67 : x
  2. Step 2: Convert to fraction form
    26,606.67/39,910.05 = 8,138.67/x
  3. Step 3: Cross multiply
    26,606.67x = 39,910.05 × 8,138.67
  4. Step 4: Simplify right side
    26,606.67x = 324,814,726.63
  5. Step 5: Solve for x
    x = 324,814,726.63/26,606.67
  6. Step 6: Final answer
    x = 12,208.02

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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.