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Finding the Fourth Proportional to 17,143.56, 25,696.62 and 6,743.88

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Solution

The fourth proportional to 17,143.56, 25,696.62 and 6,743.88 is: 10,108.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,143.56 : 25,696.62 = 6,743.88 : x
  2. Step 2: Convert to fraction form
    17,143.56/25,696.62 = 6,743.88/x
  3. Step 3: Cross multiply
    17,143.56x = 25,696.62 × 6,743.88
  4. Step 4: Simplify right side
    17,143.56x = 173,294,921.69
  5. Step 5: Solve for x
    x = 173,294,921.69/17,143.56
  6. Step 6: Final answer
    x = 10,108.46

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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.