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Finding the Fourth Proportional to 6,691.56, 10,048.72 and 5,579.84

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Solution

The fourth proportional to 6,691.56, 10,048.72 and 5,579.84 is: 8,379.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,691.56 : 10,048.72 = 5,579.84 : x
  2. Step 2: Convert to fraction form
    6,691.56/10,048.72 = 5,579.84/x
  3. Step 3: Cross multiply
    6,691.56x = 10,048.72 × 5,579.84
  4. Step 4: Simplify right side
    6,691.56x = 56,070,249.80
  5. Step 5: Solve for x
    x = 56,070,249.80/6,691.56
  6. Step 6: Final answer
    x = 8,379.25

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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.