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Finding the Fourth Proportional to 3,974.86, 5,958.64 and 1,893.57

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Solution

The fourth proportional to 3,974.86, 5,958.64 and 1,893.57 is: 2,838.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,974.86 : 5,958.64 = 1,893.57 : x
  2. Step 2: Convert to fraction form
    3,974.86/5,958.64 = 1,893.57/x
  3. Step 3: Cross multiply
    3,974.86x = 5,958.64 × 1,893.57
  4. Step 4: Simplify right side
    3,974.86x = 11,283,101.94
  5. Step 5: Solve for x
    x = 11,283,101.94/3,974.86
  6. Step 6: Final answer
    x = 2,838.62

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1.5x scale

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.