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Finding the Fourth Proportional to 3,398.84, 5,098.25 and 1,091.96

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Solution

The fourth proportional to 3,398.84, 5,098.25 and 1,091.96 is: 1,637.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,398.84 : 5,098.25 = 1,091.96 : x
  2. Step 2: Convert to fraction form
    3,398.84/5,098.25 = 1,091.96/x
  3. Step 3: Cross multiply
    3,398.84x = 5,098.25 × 1,091.96
  4. Step 4: Simplify right side
    3,398.84x = 5,567,062.31
  5. Step 5: Solve for x
    x = 5,567,062.31/3,398.84
  6. Step 6: Final answer
    x = 1,637.93

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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.