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Finding the Fourth Proportional to 6,611.58, 9,917.91 and 2,716.02

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Solution

The fourth proportional to 6,611.58, 9,917.91 and 2,716.02 is: 4,074.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,611.58 : 9,917.91 = 2,716.02 : x
  2. Step 2: Convert to fraction form
    6,611.58/9,917.91 = 2,716.02/x
  3. Step 3: Cross multiply
    6,611.58x = 9,917.91 × 2,716.02
  4. Step 4: Simplify right side
    6,611.58x = 26,937,241.92
  5. Step 5: Solve for x
    x = 26,937,241.92/6,611.58
  6. Step 6: Final answer
    x = 4,074.25

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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.