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Finding the Fourth Proportional to 3,342.78, 5,014.62 and 1,394.52

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Solution

The fourth proportional to 3,342.78, 5,014.62 and 1,394.52 is: 2,091.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,342.78 : 5,014.62 = 1,394.52 : x
  2. Step 2: Convert to fraction form
    3,342.78/5,014.62 = 1,394.52/x
  3. Step 3: Cross multiply
    3,342.78x = 5,014.62 × 1,394.52
  4. Step 4: Simplify right side
    3,342.78x = 6,992,987.88
  5. Step 5: Solve for x
    x = 6,992,987.88/3,342.78
  6. Step 6: Final answer
    x = 2,091.97

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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.