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Finding the Fourth Proportional to 17,371.92, 25,940.70 and 17,188.80

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Solution

The fourth proportional to 17,371.92, 25,940.70 and 17,188.80 is: 25,667.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,371.92 : 25,940.70 = 17,188.80 : x
  2. Step 2: Convert to fraction form
    17,371.92/25,940.70 = 17,188.80/x
  3. Step 3: Cross multiply
    17,371.92x = 25,940.70 × 17,188.80
  4. Step 4: Simplify right side
    17,371.92x = 445,889,504.16
  5. Step 5: Solve for x
    x = 445,889,504.16/17,371.92
  6. Step 6: Final answer
    x = 25,667.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.