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Finding the Fourth Proportional to 17,163.40, 25,706.22 and 13,442.44

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Solution

The fourth proportional to 17,163.40, 25,706.22 and 13,442.44 is: 20,133.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,163.40 : 25,706.22 = 13,442.44 : x
  2. Step 2: Convert to fraction form
    17,163.40/25,706.22 = 13,442.44/x
  3. Step 3: Cross multiply
    17,163.40x = 25,706.22 × 13,442.44
  4. Step 4: Simplify right side
    17,163.40x = 345,554,319.98
  5. Step 5: Solve for x
    x = 345,554,319.98/17,163.40
  6. Step 6: Final answer
    x = 20,133.21

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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.