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Finding the Fourth Proportional to 8,308.37, 12,467.21 and 4,412.67

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Solution

The fourth proportional to 8,308.37, 12,467.21 and 4,412.67 is: 6,621.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,308.37 : 12,467.21 = 4,412.67 : x
  2. Step 2: Convert to fraction form
    8,308.37/12,467.21 = 4,412.67/x
  3. Step 3: Cross multiply
    8,308.37x = 12,467.21 × 4,412.67
  4. Step 4: Simplify right side
    8,308.37x = 55,013,661.49
  5. Step 5: Solve for x
    x = 55,013,661.49/8,308.37
  6. Step 6: Final answer
    x = 6,621.48

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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.