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Finding the Fourth Proportional to 27,911.98, 41,847.92 and 13,112.67

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Solution

The fourth proportional to 27,911.98, 41,847.92 and 13,112.67 is: 19,659.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,911.98 : 41,847.92 = 13,112.67 : x
  2. Step 2: Convert to fraction form
    27,911.98/41,847.92 = 13,112.67/x
  3. Step 3: Cross multiply
    27,911.98x = 41,847.92 × 13,112.67
  4. Step 4: Simplify right side
    27,911.98x = 548,737,965.15
  5. Step 5: Solve for x
    x = 548,737,965.15/27,911.98
  6. Step 6: Final answer
    x = 19,659.59

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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.