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Finding the Fourth Proportional to 14,745.67, 22,105.22 and 5,379.15

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Solution

The fourth proportional to 14,745.67, 22,105.22 and 5,379.15 is: 8,063.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,745.67 : 22,105.22 = 5,379.15 : x
  2. Step 2: Convert to fraction form
    14,745.67/22,105.22 = 5,379.15/x
  3. Step 3: Cross multiply
    14,745.67x = 22,105.22 × 5,379.15
  4. Step 4: Simplify right side
    14,745.67x = 118,907,294.16
  5. Step 5: Solve for x
    x = 118,907,294.16/14,745.67
  6. Step 6: Final answer
    x = 8,063.88

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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.