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Finding the Fourth Proportional to 17,172.16, 25,758.24 and 7,936.96

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Solution

The fourth proportional to 17,172.16, 25,758.24 and 7,936.96 is: 11,905.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,172.16 : 25,758.24 = 7,936.96 : x
  2. Step 2: Convert to fraction form
    17,172.16/25,758.24 = 7,936.96/x
  3. Step 3: Cross multiply
    17,172.16x = 25,758.24 × 7,936.96
  4. Step 4: Simplify right side
    17,172.16x = 204,442,120.55
  5. Step 5: Solve for x
    x = 204,442,120.55/17,172.16
  6. Step 6: Final answer
    x = 11,905.44

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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.