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Finding the Fourth Proportional to 27,811.52, 41,713.88 and 11,170.88

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Solution

The fourth proportional to 27,811.52, 41,713.88 and 11,170.88 is: 16,754.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,811.52 : 41,713.88 = 11,170.88 : x
  2. Step 2: Convert to fraction form
    27,811.52/41,713.88 = 11,170.88/x
  3. Step 3: Cross multiply
    27,811.52x = 41,713.88 × 11,170.88
  4. Step 4: Simplify right side
    27,811.52x = 465,980,747.81
  5. Step 5: Solve for x
    x = 465,980,747.81/27,811.52
  6. Step 6: Final answer
    x = 16,754.95

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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.