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Finding the Fourth Proportional to 5,579.17, 8,369.03 and 3,112.11

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Solution

The fourth proportional to 5,579.17, 8,369.03 and 3,112.11 is: 4,668.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,579.17 : 8,369.03 = 3,112.11 : x
  2. Step 2: Convert to fraction form
    5,579.17/8,369.03 = 3,112.11/x
  3. Step 3: Cross multiply
    5,579.17x = 8,369.03 × 3,112.11
  4. Step 4: Simplify right side
    5,579.17x = 26,045,349.73
  5. Step 5: Solve for x
    x = 26,045,349.73/5,579.17
  6. Step 6: Final answer
    x = 4,668.32

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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.