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Finding the Fourth Proportional to 5,168.67, 7,133.13 and 2,930.57

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Solution

The fourth proportional to 5,168.67, 7,133.13 and 2,930.57 is: 4,044.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,168.67 : 7,133.13 = 2,930.57 : x
  2. Step 2: Convert to fraction form
    5,168.67/7,133.13 = 2,930.57/x
  3. Step 3: Cross multiply
    5,168.67x = 7,133.13 × 2,930.57
  4. Step 4: Simplify right side
    5,168.67x = 20,904,136.78
  5. Step 5: Solve for x
    x = 20,904,136.78/5,168.67
  6. Step 6: Final answer
    x = 4,044.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.