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Finding the Fourth Proportional to 3,351.67, 5,027.40 and 886.50

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Solution

The fourth proportional to 3,351.67, 5,027.40 and 886.50 is: 1,329.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,351.67 : 5,027.40 = 886.50 : x
  2. Step 2: Convert to fraction form
    3,351.67/5,027.40 = 886.50/x
  3. Step 3: Cross multiply
    3,351.67x = 5,027.40 × 886.50
  4. Step 4: Simplify right side
    3,351.67x = 4,456,790.10
  5. Step 5: Solve for x
    x = 4,456,790.10/3,351.67
  6. Step 6: Final answer
    x = 1,329.72

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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.