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Finding the Fourth Proportional to 6,611.48, 9,913.21 and 2,604.06

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Solution

The fourth proportional to 6,611.48, 9,913.21 and 2,604.06 is: 3,904.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,611.48 : 9,913.21 = 2,604.06 : x
  2. Step 2: Convert to fraction form
    6,611.48/9,913.21 = 2,604.06/x
  3. Step 3: Cross multiply
    6,611.48x = 9,913.21 × 2,604.06
  4. Step 4: Simplify right side
    6,611.48x = 25,814,587.12
  5. Step 5: Solve for x
    x = 25,814,587.12/6,611.48
  6. Step 6: Final answer
    x = 3,904.51

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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.