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Finding the Fourth Proportional to 8,469.91, 12,709.20 and 4,032.59

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Solution

The fourth proportional to 8,469.91, 12,709.20 and 4,032.59 is: 6,050.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,469.91 : 12,709.20 = 4,032.59 : x
  2. Step 2: Convert to fraction form
    8,469.91/12,709.20 = 4,032.59/x
  3. Step 3: Cross multiply
    8,469.91x = 12,709.20 × 4,032.59
  4. Step 4: Simplify right side
    8,469.91x = 51,250,972.67
  5. Step 5: Solve for x
    x = 51,250,972.67/8,469.91
  6. Step 6: Final answer
    x = 6,050.95

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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.