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Finding the Fourth Proportional to 8,481.99, 12,709.14 and 4,316.27

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Solution

The fourth proportional to 8,481.99, 12,709.14 and 4,316.27 is: 6,467.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,481.99 : 12,709.14 = 4,316.27 : x
  2. Step 2: Convert to fraction form
    8,481.99/12,709.14 = 4,316.27/x
  3. Step 3: Cross multiply
    8,481.99x = 12,709.14 × 4,316.27
  4. Step 4: Simplify right side
    8,481.99x = 54,856,079.71
  5. Step 5: Solve for x
    x = 54,856,079.71/8,481.99
  6. Step 6: Final answer
    x = 6,467.36

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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.