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Finding the Fourth Proportional to 18,575.92, 27,868.01 and 8,709.94

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Solution

The fourth proportional to 18,575.92, 27,868.01 and 8,709.94 is: 13,066.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,575.92 : 27,868.01 = 8,709.94 : x
  2. Step 2: Convert to fraction form
    18,575.92/27,868.01 = 8,709.94/x
  3. Step 3: Cross multiply
    18,575.92x = 27,868.01 × 8,709.94
  4. Step 4: Simplify right side
    18,575.92x = 242,728,695.02
  5. Step 5: Solve for x
    x = 242,728,695.02/18,575.92
  6. Step 6: Final answer
    x = 13,066.85

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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.