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Finding the Fourth Proportional to 3,611.83, 4,981.49 and 2,353.28

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Solution

The fourth proportional to 3,611.83, 4,981.49 and 2,353.28 is: 3,245.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,611.83 : 4,981.49 = 2,353.28 : x
  2. Step 2: Convert to fraction form
    3,611.83/4,981.49 = 2,353.28/x
  3. Step 3: Cross multiply
    3,611.83x = 4,981.49 × 2,353.28
  4. Step 4: Simplify right side
    3,611.83x = 11,722,840.79
  5. Step 5: Solve for x
    x = 11,722,840.79/3,611.83
  6. Step 6: Final answer
    x = 3,245.68

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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.