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Finding the Fourth Proportional to 8,167.80, 12,251.70 and 4,884.60

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Solution

The fourth proportional to 8,167.80, 12,251.70 and 4,884.60 is: 7,326.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,167.80 : 12,251.70 = 4,884.60 : x
  2. Step 2: Convert to fraction form
    8,167.80/12,251.70 = 4,884.60/x
  3. Step 3: Cross multiply
    8,167.80x = 12,251.70 × 4,884.60
  4. Step 4: Simplify right side
    8,167.80x = 59,844,653.82
  5. Step 5: Solve for x
    x = 59,844,653.82/8,167.80
  6. Step 6: Final answer
    x = 7,326.90

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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.