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Finding the Fourth Proportional to 10,992.84, 16,489.11 and 2,672.83

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Solution

The fourth proportional to 10,992.84, 16,489.11 and 2,672.83 is: 4,009.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,992.84 : 16,489.11 = 2,672.83 : x
  2. Step 2: Convert to fraction form
    10,992.84/16,489.11 = 2,672.83/x
  3. Step 3: Cross multiply
    10,992.84x = 16,489.11 × 2,672.83
  4. Step 4: Simplify right side
    10,992.84x = 44,072,587.88
  5. Step 5: Solve for x
    x = 44,072,587.88/10,992.84
  6. Step 6: Final answer
    x = 4,009.21

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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.