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Finding the Fourth Proportional to 8,371.59, 12,553.74 and 2,823.90

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Solution

The fourth proportional to 8,371.59, 12,553.74 and 2,823.90 is: 4,234.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,371.59 : 12,553.74 = 2,823.90 : x
  2. Step 2: Convert to fraction form
    8,371.59/12,553.74 = 2,823.90/x
  3. Step 3: Cross multiply
    8,371.59x = 12,553.74 × 2,823.90
  4. Step 4: Simplify right side
    8,371.59x = 35,450,506.39
  5. Step 5: Solve for x
    x = 35,450,506.39/8,371.59
  6. Step 6: Final answer
    x = 4,234.62

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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.