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Finding the Fourth Proportional to 27,713.85, 41,576.93 and 7,990.88

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Solution

The fourth proportional to 27,713.85, 41,576.93 and 7,990.88 is: 11,988.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,713.85 : 41,576.93 = 7,990.88 : x
  2. Step 2: Convert to fraction form
    27,713.85/41,576.93 = 7,990.88/x
  3. Step 3: Cross multiply
    27,713.85x = 41,576.93 × 7,990.88
  4. Step 4: Simplify right side
    27,713.85x = 332,236,010.56
  5. Step 5: Solve for x
    x = 332,236,010.56/27,713.85
  6. Step 6: Final answer
    x = 11,988.09

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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.