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Finding the Fourth Proportional to 3,781.92, 5,674.32 and 1,701.84

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Solution

The fourth proportional to 3,781.92, 5,674.32 and 1,701.84 is: 2,553.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,781.92 : 5,674.32 = 1,701.84 : x
  2. Step 2: Convert to fraction form
    3,781.92/5,674.32 = 1,701.84/x
  3. Step 3: Cross multiply
    3,781.92x = 5,674.32 × 1,701.84
  4. Step 4: Simplify right side
    3,781.92x = 9,656,784.75
  5. Step 5: Solve for x
    x = 9,656,784.75/3,781.92
  6. Step 6: Final answer
    x = 2,553.41

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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.