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Finding the Fourth Proportional to 17,161.70, 25,731.60 and 7,295.90

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Solution

The fourth proportional to 17,161.70, 25,731.60 and 7,295.90 is: 10,939.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,161.70 : 25,731.60 = 7,295.90 : x
  2. Step 2: Convert to fraction form
    17,161.70/25,731.60 = 7,295.90/x
  3. Step 3: Cross multiply
    17,161.70x = 25,731.60 × 7,295.90
  4. Step 4: Simplify right side
    17,161.70x = 187,735,180.44
  5. Step 5: Solve for x
    x = 187,735,180.44/17,161.70
  6. Step 6: Final answer
    x = 10,939.19

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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.