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Finding the Fourth Proportional to 8,467.33, 12,709.19 and 4,087.86

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Solution

The fourth proportional to 8,467.33, 12,709.19 and 4,087.86 is: 6,135.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,467.33 : 12,709.19 = 4,087.86 : x
  2. Step 2: Convert to fraction form
    8,467.33/12,709.19 = 4,087.86/x
  3. Step 3: Cross multiply
    8,467.33x = 12,709.19 × 4,087.86
  4. Step 4: Simplify right side
    8,467.33x = 51,953,305.45
  5. Step 5: Solve for x
    x = 51,953,305.45/8,467.33
  6. Step 6: Final answer
    x = 6,135.74

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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.