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Finding the Fourth Proportional to 17,338.40, 26,016.60 and 8,104.40

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Solution

The fourth proportional to 17,338.40, 26,016.60 and 8,104.40 is: 12,160.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,338.40 : 26,016.60 = 8,104.40 : x
  2. Step 2: Convert to fraction form
    17,338.40/26,016.60 = 8,104.40/x
  3. Step 3: Cross multiply
    17,338.40x = 26,016.60 × 8,104.40
  4. Step 4: Simplify right side
    17,338.40x = 210,848,933.04
  5. Step 5: Solve for x
    x = 210,848,933.04/17,338.40
  6. Step 6: Final answer
    x = 12,160.81

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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.