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Finding the Fourth Proportional to 8,594.82, 12,889.08 and 3,910.86

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Solution

The fourth proportional to 8,594.82, 12,889.08 and 3,910.86 is: 5,864.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,594.82 : 12,889.08 = 3,910.86 : x
  2. Step 2: Convert to fraction form
    8,594.82/12,889.08 = 3,910.86/x
  3. Step 3: Cross multiply
    8,594.82x = 12,889.08 × 3,910.86
  4. Step 4: Simplify right side
    8,594.82x = 50,407,387.41
  5. Step 5: Solve for x
    x = 50,407,387.41/8,594.82
  6. Step 6: Final answer
    x = 5,864.86

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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.