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Finding the Fourth Proportional to 17,239.28, 25,859 and 6,851

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Solution

The fourth proportional to 17,239.28, 25,859 and 6,851 is: 10,276.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,239.28 : 25,859 = 6,851 : x
  2. Step 2: Convert to fraction form
    17,239.28/25,859 = 6,851/x
  3. Step 3: Cross multiply
    17,239.28x = 25,859 × 6,851
  4. Step 4: Simplify right side
    17,239.28x = 177,160,009
  5. Step 5: Solve for x
    x = 177,160,009/17,239.28
  6. Step 6: Final answer
    x = 10,276.53

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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.