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Finding the Fourth Proportional to 5,819.69, 8,031.19 and 3,167.09

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Solution

The fourth proportional to 5,819.69, 8,031.19 and 3,167.09 is: 4,370.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,819.69 : 8,031.19 = 3,167.09 : x
  2. Step 2: Convert to fraction form
    5,819.69/8,031.19 = 3,167.09/x
  3. Step 3: Cross multiply
    5,819.69x = 8,031.19 × 3,167.09
  4. Step 4: Simplify right side
    5,819.69x = 25,435,501.54
  5. Step 5: Solve for x
    x = 25,435,501.54/5,819.69
  6. Step 6: Final answer
    x = 4,370.60

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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.