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Finding the Fourth Proportional to 3,611.61, 4,982.94 and 2,492.64

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Solution

The fourth proportional to 3,611.61, 4,982.94 and 2,492.64 is: 3,439.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,611.61 : 4,982.94 = 2,492.64 : x
  2. Step 2: Convert to fraction form
    3,611.61/4,982.94 = 2,492.64/x
  3. Step 3: Cross multiply
    3,611.61x = 4,982.94 × 2,492.64
  4. Step 4: Simplify right side
    3,611.61x = 12,420,675.56
  5. Step 5: Solve for x
    x = 12,420,675.56/3,611.61
  6. Step 6: Final answer
    x = 3,439.10

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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.