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Finding the Fourth Proportional to 3,953.92, 5,934.48 and 1,764.48

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Solution

The fourth proportional to 3,953.92, 5,934.48 and 1,764.48 is: 2,648.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,953.92 : 5,934.48 = 1,764.48 : x
  2. Step 2: Convert to fraction form
    3,953.92/5,934.48 = 1,764.48/x
  3. Step 3: Cross multiply
    3,953.92x = 5,934.48 × 1,764.48
  4. Step 4: Simplify right side
    3,953.92x = 10,471,271.27
  5. Step 5: Solve for x
    x = 10,471,271.27/3,953.92
  6. Step 6: Final answer
    x = 2,648.33

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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.