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Finding the Fourth Proportional to 17,960.47, 26,942.11 and 5,480.60

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Solution

The fourth proportional to 17,960.47, 26,942.11 and 5,480.60 is: 8,221.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,960.47 : 26,942.11 = 5,480.60 : x
  2. Step 2: Convert to fraction form
    17,960.47/26,942.11 = 5,480.60/x
  3. Step 3: Cross multiply
    17,960.47x = 26,942.11 × 5,480.60
  4. Step 4: Simplify right side
    17,960.47x = 147,658,885.61
  5. Step 5: Solve for x
    x = 147,658,885.61/17,960.47
  6. Step 6: Final answer
    x = 8,221.33

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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.