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Finding the Fourth Proportional to 2,383.93, 3,289.81 and 1,335.97

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Solution

The fourth proportional to 2,383.93, 3,289.81 and 1,335.97 is: 1,843.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,383.93 : 3,289.81 = 1,335.97 : x
  2. Step 2: Convert to fraction form
    2,383.93/3,289.81 = 1,335.97/x
  3. Step 3: Cross multiply
    2,383.93x = 3,289.81 × 1,335.97
  4. Step 4: Simplify right side
    2,383.93x = 4,395,064.34
  5. Step 5: Solve for x
    x = 4,395,064.34/2,383.93
  6. Step 6: Final answer
    x = 1,843.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.