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Finding the Fourth Proportional to 11,591.80, 17,387.70 and 2,826.71

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Solution

The fourth proportional to 11,591.80, 17,387.70 and 2,826.71 is: 4,240.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,591.80 : 17,387.70 = 2,826.71 : x
  2. Step 2: Convert to fraction form
    11,591.80/17,387.70 = 2,826.71/x
  3. Step 3: Cross multiply
    11,591.80x = 17,387.70 × 2,826.71
  4. Step 4: Simplify right side
    11,591.80x = 49,149,953.13
  5. Step 5: Solve for x
    x = 49,149,953.13/11,591.80
  6. Step 6: Final answer
    x = 4,240.06

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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.