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Finding the Fourth Proportional to 5,908.12, 8,856.06 and 2,789.80

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Solution

The fourth proportional to 5,908.12, 8,856.06 and 2,789.80 is: 4,181.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,908.12 : 8,856.06 = 2,789.80 : x
  2. Step 2: Convert to fraction form
    5,908.12/8,856.06 = 2,789.80/x
  3. Step 3: Cross multiply
    5,908.12x = 8,856.06 × 2,789.80
  4. Step 4: Simplify right side
    5,908.12x = 24,706,636.19
  5. Step 5: Solve for x
    x = 24,706,636.19/5,908.12
  6. Step 6: Final answer
    x = 4,181.81

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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.