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Finding the Fourth Proportional to 8,606.45, 12,893.21 and 5,819.44

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Solution

The fourth proportional to 8,606.45, 12,893.21 and 5,819.44 is: 8,718.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,606.45 : 12,893.21 = 5,819.44 : x
  2. Step 2: Convert to fraction form
    8,606.45/12,893.21 = 5,819.44/x
  3. Step 3: Cross multiply
    8,606.45x = 12,893.21 × 5,819.44
  4. Step 4: Simplify right side
    8,606.45x = 75,031,244.32
  5. Step 5: Solve for x
    x = 75,031,244.32/8,606.45
  6. Step 6: Final answer
    x = 8,718.03

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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.