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Finding the Fourth Proportional to 17,021.45, 25,542.17 and 7,159.97

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Solution

The fourth proportional to 17,021.45, 25,542.17 and 7,159.97 is: 10,744.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,021.45 : 25,542.17 = 7,159.97 : x
  2. Step 2: Convert to fraction form
    17,021.45/25,542.17 = 7,159.97/x
  3. Step 3: Cross multiply
    17,021.45x = 25,542.17 × 7,159.97
  4. Step 4: Simplify right side
    17,021.45x = 182,881,170.93
  5. Step 5: Solve for x
    x = 182,881,170.93/17,021.45
  6. Step 6: Final answer
    x = 10,744.16

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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.