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Finding the Fourth Proportional to 25,671.73, 38,491.11 and 10,689.22

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Solution

The fourth proportional to 25,671.73, 38,491.11 and 10,689.22 is: 16,026.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,671.73 : 38,491.11 = 10,689.22 : x
  2. Step 2: Convert to fraction form
    25,671.73/38,491.11 = 10,689.22/x
  3. Step 3: Cross multiply
    25,671.73x = 38,491.11 × 10,689.22
  4. Step 4: Simplify right side
    25,671.73x = 411,439,942.83
  5. Step 5: Solve for x
    x = 411,439,942.83/25,671.73
  6. Step 6: Final answer
    x = 16,026.97

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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.