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Finding the Fourth Proportional to 3,924.63, 5,913.13 and 3,549.82

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Solution

The fourth proportional to 3,924.63, 5,913.13 and 3,549.82 is: 5,348.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,924.63 : 5,913.13 = 3,549.82 : x
  2. Step 2: Convert to fraction form
    3,924.63/5,913.13 = 3,549.82/x
  3. Step 3: Cross multiply
    3,924.63x = 5,913.13 × 3,549.82
  4. Step 4: Simplify right side
    3,924.63x = 20,990,545.79
  5. Step 5: Solve for x
    x = 20,990,545.79/3,924.63
  6. Step 6: Final answer
    x = 5,348.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.