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Finding the Fourth Proportional to 5,859.59, 8,787.56 and 2,161.76

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Solution

The fourth proportional to 5,859.59, 8,787.56 and 2,161.76 is: 3,241.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,859.59 : 8,787.56 = 2,161.76 : x
  2. Step 2: Convert to fraction form
    5,859.59/8,787.56 = 2,161.76/x
  3. Step 3: Cross multiply
    5,859.59x = 8,787.56 × 2,161.76
  4. Step 4: Simplify right side
    5,859.59x = 18,996,540.96
  5. Step 5: Solve for x
    x = 18,996,540.96/5,859.59
  6. Step 6: Final answer
    x = 3,241.96

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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.