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Finding the Fourth Proportional to 8,141.95, 12,217.19 and 4,443.49

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Solution

The fourth proportional to 8,141.95, 12,217.19 and 4,443.49 is: 6,667.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,141.95 : 12,217.19 = 4,443.49 : x
  2. Step 2: Convert to fraction form
    8,141.95/12,217.19 = 4,443.49/x
  3. Step 3: Cross multiply
    8,141.95x = 12,217.19 × 4,443.49
  4. Step 4: Simplify right side
    8,141.95x = 54,286,961.59
  5. Step 5: Solve for x
    x = 54,286,961.59/8,141.95
  6. Step 6: Final answer
    x = 6,667.56

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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.