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Finding the Fourth Proportional to 8,592.12, 11,879.10 and 6,609.24

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Solution

The fourth proportional to 8,592.12, 11,879.10 and 6,609.24 is: 9,137.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,592.12 : 11,879.10 = 6,609.24 : x
  2. Step 2: Convert to fraction form
    8,592.12/11,879.10 = 6,609.24/x
  3. Step 3: Cross multiply
    8,592.12x = 11,879.10 × 6,609.24
  4. Step 4: Simplify right side
    8,592.12x = 78,511,822.88
  5. Step 5: Solve for x
    x = 78,511,822.88/8,592.12
  6. Step 6: Final answer
    x = 9,137.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.