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Finding the Fourth Proportional to 3,945.94, 5,919.24 and 1,024.30

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Solution

The fourth proportional to 3,945.94, 5,919.24 and 1,024.30 is: 1,536.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945.94 : 5,919.24 = 1,024.30 : x
  2. Step 2: Convert to fraction form
    3,945.94/5,919.24 = 1,024.30/x
  3. Step 3: Cross multiply
    3,945.94x = 5,919.24 × 1,024.30
  4. Step 4: Simplify right side
    3,945.94x = 6,063,077.53
  5. Step 5: Solve for x
    x = 6,063,077.53/3,945.94
  6. Step 6: Final answer
    x = 1,536.54

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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.