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Finding the Fourth Proportional to 8,565.70, 12,845.48 and 3,635.68

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Solution

The fourth proportional to 8,565.70, 12,845.48 and 3,635.68 is: 5,452.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,565.70 : 12,845.48 = 3,635.68 : x
  2. Step 2: Convert to fraction form
    8,565.70/12,845.48 = 3,635.68/x
  3. Step 3: Cross multiply
    8,565.70x = 12,845.48 × 3,635.68
  4. Step 4: Simplify right side
    8,565.70x = 46,702,054.73
  5. Step 5: Solve for x
    x = 46,702,054.73/8,565.70
  6. Step 6: Final answer
    x = 5,452.22

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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.