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Finding the Fourth Proportional to 5,857.17, 8,784.54 and 2,158.44

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Solution

The fourth proportional to 5,857.17, 8,784.54 and 2,158.44 is: 3,237.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,857.17 : 8,784.54 = 2,158.44 : x
  2. Step 2: Convert to fraction form
    5,857.17/8,784.54 = 2,158.44/x
  3. Step 3: Cross multiply
    5,857.17x = 8,784.54 × 2,158.44
  4. Step 4: Simplify right side
    5,857.17x = 18,960,902.52
  5. Step 5: Solve for x
    x = 18,960,902.52/5,857.17
  6. Step 6: Final answer
    x = 3,237.21

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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.