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Finding the Fourth Proportional to 27,163.98, 40,747.79 and 7,440.89

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Solution

The fourth proportional to 27,163.98, 40,747.79 and 7,440.89 is: 11,161.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,163.98 : 40,747.79 = 7,440.89 : x
  2. Step 2: Convert to fraction form
    27,163.98/40,747.79 = 7,440.89/x
  3. Step 3: Cross multiply
    27,163.98x = 40,747.79 × 7,440.89
  4. Step 4: Simplify right side
    27,163.98x = 303,199,638.00
  5. Step 5: Solve for x
    x = 303,199,638.00/27,163.98
  6. Step 6: Final answer
    x = 11,161.83

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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.