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Finding the Fourth Proportional to 6,611.76, 9,914.12 and 3,493.44

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Solution

The fourth proportional to 6,611.76, 9,914.12 and 3,493.44 is: 5,238.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,611.76 : 9,914.12 = 3,493.44 : x
  2. Step 2: Convert to fraction form
    6,611.76/9,914.12 = 3,493.44/x
  3. Step 3: Cross multiply
    6,611.76x = 9,914.12 × 3,493.44
  4. Step 4: Simplify right side
    6,611.76x = 34,634,383.37
  5. Step 5: Solve for x
    x = 34,634,383.37/6,611.76
  6. Step 6: Final answer
    x = 5,238.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.