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Finding the Fourth Proportional to 4,611.05, 6,910.49 and 1,686.54

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Solution

The fourth proportional to 4,611.05, 6,910.49 and 1,686.54 is: 2,527.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,611.05 : 6,910.49 = 1,686.54 : x
  2. Step 2: Convert to fraction form
    4,611.05/6,910.49 = 1,686.54/x
  3. Step 3: Cross multiply
    4,611.05x = 6,910.49 × 1,686.54
  4. Step 4: Simplify right side
    4,611.05x = 11,654,817.80
  5. Step 5: Solve for x
    x = 11,654,817.80/4,611.05
  6. Step 6: Final answer
    x = 2,527.58

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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.