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Finding the Fourth Proportional to 5,857.62, 8,789.90 and 2,162.45

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Solution

The fourth proportional to 5,857.62, 8,789.90 and 2,162.45 is: 3,244.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,857.62 : 8,789.90 = 2,162.45 : x
  2. Step 2: Convert to fraction form
    5,857.62/8,789.90 = 2,162.45/x
  3. Step 3: Cross multiply
    5,857.62x = 8,789.90 × 2,162.45
  4. Step 4: Simplify right side
    5,857.62x = 19,007,664.49
  5. Step 5: Solve for x
    x = 19,007,664.49/5,857.62
  6. Step 6: Final answer
    x = 3,244.95

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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.