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Finding the Fourth Proportional to 3,709.62, 5,565.57 and 1,518.52

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Solution

The fourth proportional to 3,709.62, 5,565.57 and 1,518.52 is: 2,278.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,709.62 : 5,565.57 = 1,518.52 : x
  2. Step 2: Convert to fraction form
    3,709.62/5,565.57 = 1,518.52/x
  3. Step 3: Cross multiply
    3,709.62x = 5,565.57 × 1,518.52
  4. Step 4: Simplify right side
    3,709.62x = 8,451,393.94
  5. Step 5: Solve for x
    x = 8,451,393.94/3,709.62
  6. Step 6: Final answer
    x = 2,278.24

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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.