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Finding the Fourth Proportional to 8,011.62, 12,017.43 and 5,255.73

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Solution

The fourth proportional to 8,011.62, 12,017.43 and 5,255.73 is: 7,883.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,011.62 : 12,017.43 = 5,255.73 : x
  2. Step 2: Convert to fraction form
    8,011.62/12,017.43 = 5,255.73/x
  3. Step 3: Cross multiply
    8,011.62x = 12,017.43 × 5,255.73
  4. Step 4: Simplify right side
    8,011.62x = 63,160,367.37
  5. Step 5: Solve for x
    x = 63,160,367.37/8,011.62
  6. Step 6: Final answer
    x = 7,883.60

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Similar ratio
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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.