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Finding the Fourth Proportional to 7,168.70, 9,891.19 and 4,024.68

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Solution

The fourth proportional to 7,168.70, 9,891.19 and 4,024.68 is: 5,553.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,168.70 : 9,891.19 = 4,024.68 : x
  2. Step 2: Convert to fraction form
    7,168.70/9,891.19 = 4,024.68/x
  3. Step 3: Cross multiply
    7,168.70x = 9,891.19 × 4,024.68
  4. Step 4: Simplify right side
    7,168.70x = 39,808,874.57
  5. Step 5: Solve for x
    x = 39,808,874.57/7,168.70
  6. Step 6: Final answer
    x = 5,553.15

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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.