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Finding the Fourth Proportional to 17,128.92, 25,696.98 and 7,267.98

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Solution

The fourth proportional to 17,128.92, 25,696.98 and 7,267.98 is: 10,903.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,128.92 : 25,696.98 = 7,267.98 : x
  2. Step 2: Convert to fraction form
    17,128.92/25,696.98 = 7,267.98/x
  3. Step 3: Cross multiply
    17,128.92x = 25,696.98 × 7,267.98
  4. Step 4: Simplify right side
    17,128.92x = 186,765,136.70
  5. Step 5: Solve for x
    x = 186,765,136.70/17,128.92
  6. Step 6: Final answer
    x = 10,903.50

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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.