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Finding the Fourth Proportional to 2,735.70, 4,103.67 and 886.96

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Solution

The fourth proportional to 2,735.70, 4,103.67 and 886.96 is: 1,330.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,735.70 : 4,103.67 = 886.96 : x
  2. Step 2: Convert to fraction form
    2,735.70/4,103.67 = 886.96/x
  3. Step 3: Cross multiply
    2,735.70x = 4,103.67 × 886.96
  4. Step 4: Simplify right side
    2,735.70x = 3,639,770.62
  5. Step 5: Solve for x
    x = 3,639,770.62/2,735.70
  6. Step 6: Final answer
    x = 1,330.47

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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.