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Finding the Fourth Proportional to 5,759.92, 8,636.22 and 3,811.12

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Solution

The fourth proportional to 5,759.92, 8,636.22 and 3,811.12 is: 5,714.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,759.92 : 8,636.22 = 3,811.12 : x
  2. Step 2: Convert to fraction form
    5,759.92/8,636.22 = 3,811.12/x
  3. Step 3: Cross multiply
    5,759.92x = 8,636.22 × 3,811.12
  4. Step 4: Simplify right side
    5,759.92x = 32,913,670.77
  5. Step 5: Solve for x
    x = 32,913,670.77/5,759.92
  6. Step 6: Final answer
    x = 5,714.26

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1.5x scale

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.