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Finding the Fourth Proportional to 3,611.46, 4,984.12 and 2,039.84

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Solution

The fourth proportional to 3,611.46, 4,984.12 and 2,039.84 is: 2,815.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,611.46 : 4,984.12 = 2,039.84 : x
  2. Step 2: Convert to fraction form
    3,611.46/4,984.12 = 2,039.84/x
  3. Step 3: Cross multiply
    3,611.46x = 4,984.12 × 2,039.84
  4. Step 4: Simplify right side
    3,611.46x = 10,166,807.34
  5. Step 5: Solve for x
    x = 10,166,807.34/3,611.46
  6. Step 6: Final answer
    x = 2,815.15

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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.