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Finding the Fourth Proportional to 17,930.40, 26,898.86 and 7,394.57

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Solution

The fourth proportional to 17,930.40, 26,898.86 and 7,394.57 is: 11,093.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,930.40 : 26,898.86 = 7,394.57 : x
  2. Step 2: Convert to fraction form
    17,930.40/26,898.86 = 7,394.57/x
  3. Step 3: Cross multiply
    17,930.40x = 26,898.86 × 7,394.57
  4. Step 4: Simplify right side
    17,930.40x = 198,905,391.60
  5. Step 5: Solve for x
    x = 198,905,391.60/17,930.40
  6. Step 6: Final answer
    x = 11,093.19

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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.