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Finding the Fourth Proportional to 8,710.73, 13,074.29 and 3,169.42

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Solution

The fourth proportional to 8,710.73, 13,074.29 and 3,169.42 is: 4,757.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,710.73 : 13,074.29 = 3,169.42 : x
  2. Step 2: Convert to fraction form
    8,710.73/13,074.29 = 3,169.42/x
  3. Step 3: Cross multiply
    8,710.73x = 13,074.29 × 3,169.42
  4. Step 4: Simplify right side
    8,710.73x = 41,437,916.21
  5. Step 5: Solve for x
    x = 41,437,916.21/8,710.73
  6. Step 6: Final answer
    x = 4,757.11

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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.