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Finding the Fourth Proportional to 18,394.60, 27,591.38 and 5,914.52

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Solution

The fourth proportional to 18,394.60, 27,591.38 and 5,914.52 is: 8,871.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,394.60 : 27,591.38 = 5,914.52 : x
  2. Step 2: Convert to fraction form
    18,394.60/27,591.38 = 5,914.52/x
  3. Step 3: Cross multiply
    18,394.60x = 27,591.38 × 5,914.52
  4. Step 4: Simplify right side
    18,394.60x = 163,189,768.84
  5. Step 5: Solve for x
    x = 163,189,768.84/18,394.60
  6. Step 6: Final answer
    x = 8,871.62

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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.