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Finding the Fourth Proportional to 10,992.49, 16,488.50 and 2,672.55

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Solution

The fourth proportional to 10,992.49, 16,488.50 and 2,672.55 is: 4,008.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,992.49 : 16,488.50 = 2,672.55 : x
  2. Step 2: Convert to fraction form
    10,992.49/16,488.50 = 2,672.55/x
  3. Step 3: Cross multiply
    10,992.49x = 16,488.50 × 2,672.55
  4. Step 4: Simplify right side
    10,992.49x = 44,066,340.68
  5. Step 5: Solve for x
    x = 44,066,340.68/10,992.49
  6. Step 6: Final answer
    x = 4,008.77

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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.