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Finding the Fourth Proportional to 3,763.86, 5,640.92 and 1,569.57

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Solution

The fourth proportional to 3,763.86, 5,640.92 and 1,569.57 is: 2,352.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,763.86 : 5,640.92 = 1,569.57 : x
  2. Step 2: Convert to fraction form
    3,763.86/5,640.92 = 1,569.57/x
  3. Step 3: Cross multiply
    3,763.86x = 5,640.92 × 1,569.57
  4. Step 4: Simplify right side
    3,763.86x = 8,853,818.80
  5. Step 5: Solve for x
    x = 8,853,818.80/3,763.86
  6. Step 6: Final answer
    x = 2,352.32

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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.