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Finding the Fourth Proportional to 18,648.84, 27,977.10 and 5,499.96

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Solution

The fourth proportional to 18,648.84, 27,977.10 and 5,499.96 is: 8,251.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,648.84 : 27,977.10 = 5,499.96 : x
  2. Step 2: Convert to fraction form
    18,648.84/27,977.10 = 5,499.96/x
  3. Step 3: Cross multiply
    18,648.84x = 27,977.10 × 5,499.96
  4. Step 4: Simplify right side
    18,648.84x = 153,872,930.92
  5. Step 5: Solve for x
    x = 153,872,930.92/18,648.84
  6. Step 6: Final answer
    x = 8,251.07

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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.