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Finding the Fourth Proportional to 8,213.97, 12,302.45 and 5,759.74

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Solution

The fourth proportional to 8,213.97, 12,302.45 and 5,759.74 is: 8,626.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,213.97 : 12,302.45 = 5,759.74 : x
  2. Step 2: Convert to fraction form
    8,213.97/12,302.45 = 5,759.74/x
  3. Step 3: Cross multiply
    8,213.97x = 12,302.45 × 5,759.74
  4. Step 4: Simplify right side
    8,213.97x = 70,858,921.54
  5. Step 5: Solve for x
    x = 70,858,921.54/8,213.97
  6. Step 6: Final answer
    x = 8,626.63

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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.