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Finding the Fourth Proportional to 5,857.21, 8,788.10 and 3,086.10

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Solution

The fourth proportional to 5,857.21, 8,788.10 and 3,086.10 is: 4,630.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,857.21 : 8,788.10 = 3,086.10 : x
  2. Step 2: Convert to fraction form
    5,857.21/8,788.10 = 3,086.10/x
  3. Step 3: Cross multiply
    5,857.21x = 8,788.10 × 3,086.10
  4. Step 4: Simplify right side
    5,857.21x = 27,120,939.98
  5. Step 5: Solve for x
    x = 27,120,939.98/5,857.21
  6. Step 6: Final answer
    x = 4,630.35

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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.