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Finding the Fourth Proportional to 18,419.96, 27,633.78 and 6,107

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Solution

The fourth proportional to 18,419.96, 27,633.78 and 6,107 is: 9,161.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,419.96 : 27,633.78 = 6,107 : x
  2. Step 2: Convert to fraction form
    18,419.96/27,633.78 = 6,107/x
  3. Step 3: Cross multiply
    18,419.96x = 27,633.78 × 6,107
  4. Step 4: Simplify right side
    18,419.96x = 168,759,494.46
  5. Step 5: Solve for x
    x = 168,759,494.46/18,419.96
  6. Step 6: Final answer
    x = 9,161.77

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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.