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Finding the Fourth Proportional to 18,302.84, 27,410.17 and 8,919.92

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Solution

The fourth proportional to 18,302.84, 27,410.17 and 8,919.92 is: 13,358.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,302.84 : 27,410.17 = 8,919.92 : x
  2. Step 2: Convert to fraction form
    18,302.84/27,410.17 = 8,919.92/x
  3. Step 3: Cross multiply
    18,302.84x = 27,410.17 × 8,919.92
  4. Step 4: Simplify right side
    18,302.84x = 244,496,611.62
  5. Step 5: Solve for x
    x = 244,496,611.62/18,302.84
  6. Step 6: Final answer
    x = 13,358.40

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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.