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Finding the Fourth Proportional to 17,893.85, 26,838.72 and 4,747.25

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Solution

The fourth proportional to 17,893.85, 26,838.72 and 4,747.25 is: 7,120.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,893.85 : 26,838.72 = 4,747.25 : x
  2. Step 2: Convert to fraction form
    17,893.85/26,838.72 = 4,747.25/x
  3. Step 3: Cross multiply
    17,893.85x = 26,838.72 × 4,747.25
  4. Step 4: Simplify right side
    17,893.85x = 127,410,113.52
  5. Step 5: Solve for x
    x = 127,410,113.52/17,893.85
  6. Step 6: Final answer
    x = 7,120.33

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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.