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Finding the Fourth Proportional to 17,028.50, 25,542.59 and 6,640.25

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Solution

The fourth proportional to 17,028.50, 25,542.59 and 6,640.25 is: 9,960.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,028.50 : 25,542.59 = 6,640.25 : x
  2. Step 2: Convert to fraction form
    17,028.50/25,542.59 = 6,640.25/x
  3. Step 3: Cross multiply
    17,028.50x = 25,542.59 × 6,640.25
  4. Step 4: Simplify right side
    17,028.50x = 169,609,022.33
  5. Step 5: Solve for x
    x = 169,609,022.33/17,028.50
  6. Step 6: Final answer
    x = 9,960.31

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1.5x scale

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.