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Finding the Fourth Proportional to 5,365.56, 8,046.72 and 1,902

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Solution

The fourth proportional to 5,365.56, 8,046.72 and 1,902 is: 2,852.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,365.56 : 8,046.72 = 1,902 : x
  2. Step 2: Convert to fraction form
    5,365.56/8,046.72 = 1,902/x
  3. Step 3: Cross multiply
    5,365.56x = 8,046.72 × 1,902
  4. Step 4: Simplify right side
    5,365.56x = 15,304,861.44
  5. Step 5: Solve for x
    x = 15,304,861.44/5,365.56
  6. Step 6: Final answer
    x = 2,852.43

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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.