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Finding the Fourth Proportional to 17,004.92, 25,512.34 and 7,139

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Solution

The fourth proportional to 17,004.92, 25,512.34 and 7,139 is: 10,710.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,004.92 : 25,512.34 = 7,139 : x
  2. Step 2: Convert to fraction form
    17,004.92/25,512.34 = 7,139/x
  3. Step 3: Cross multiply
    17,004.92x = 25,512.34 × 7,139
  4. Step 4: Simplify right side
    17,004.92x = 182,132,595.26
  5. Step 5: Solve for x
    x = 182,132,595.26/17,004.92
  6. Step 6: Final answer
    x = 10,710.58

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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.