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Finding the Fourth Proportional to 15,136.56, 22,672.02 and 7,329

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Solution

The fourth proportional to 15,136.56, 22,672.02 and 7,329 is: 10,977.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,136.56 : 22,672.02 = 7,329 : x
  2. Step 2: Convert to fraction form
    15,136.56/22,672.02 = 7,329/x
  3. Step 3: Cross multiply
    15,136.56x = 22,672.02 × 7,329
  4. Step 4: Simplify right side
    15,136.56x = 166,163,234.58
  5. Step 5: Solve for x
    x = 166,163,234.58/15,136.56
  6. Step 6: Final answer
    x = 10,977.61

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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.