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Finding the Fourth Proportional to 19,672.90, 29,503.19 and 8,568.41

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Solution

The fourth proportional to 19,672.90, 29,503.19 and 8,568.41 is: 12,849.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,672.90 : 29,503.19 = 8,568.41 : x
  2. Step 2: Convert to fraction form
    19,672.90/29,503.19 = 8,568.41/x
  3. Step 3: Cross multiply
    19,672.90x = 29,503.19 × 8,568.41
  4. Step 4: Simplify right side
    19,672.90x = 252,795,336.91
  5. Step 5: Solve for x
    x = 252,795,336.91/19,672.90
  6. Step 6: Final answer
    x = 12,849.93

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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.