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Finding the Fourth Proportional to 17,600.78, 26,375.79 and 17,068.34

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Solution

The fourth proportional to 17,600.78, 26,375.79 and 17,068.34 is: 25,577.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,600.78 : 26,375.79 = 17,068.34 : x
  2. Step 2: Convert to fraction form
    17,600.78/26,375.79 = 17,068.34/x
  3. Step 3: Cross multiply
    17,600.78x = 26,375.79 × 17,068.34
  4. Step 4: Simplify right side
    17,600.78x = 450,190,951.49
  5. Step 5: Solve for x
    x = 450,190,951.49/17,600.78
  6. Step 6: Final answer
    x = 25,577.90

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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.