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Finding the Fourth Proportional to 2,548.82, 3,822.62 and 699.44

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Solution

The fourth proportional to 2,548.82, 3,822.62 and 699.44 is: 1,048.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,548.82 : 3,822.62 = 699.44 : x
  2. Step 2: Convert to fraction form
    2,548.82/3,822.62 = 699.44/x
  3. Step 3: Cross multiply
    2,548.82x = 3,822.62 × 699.44
  4. Step 4: Simplify right side
    2,548.82x = 2,673,693.33
  5. Step 5: Solve for x
    x = 2,673,693.33/2,548.82
  6. Step 6: Final answer
    x = 1,048.99

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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.