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Finding the Fourth Proportional to 8,757.92, 12,093.91 and 5,619.58

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Solution

The fourth proportional to 8,757.92, 12,093.91 and 5,619.58 is: 7,760.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,757.92 : 12,093.91 = 5,619.58 : x
  2. Step 2: Convert to fraction form
    8,757.92/12,093.91 = 5,619.58/x
  3. Step 3: Cross multiply
    8,757.92x = 12,093.91 × 5,619.58
  4. Step 4: Simplify right side
    8,757.92x = 67,962,650.47
  5. Step 5: Solve for x
    x = 67,962,650.47/8,757.92
  6. Step 6: Final answer
    x = 7,760.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.