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Finding the Fourth Proportional to 13,469.06, 20,205.22 and 6,893.48

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Solution

The fourth proportional to 13,469.06, 20,205.22 and 6,893.48 is: 10,341.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,469.06 : 20,205.22 = 6,893.48 : x
  2. Step 2: Convert to fraction form
    13,469.06/20,205.22 = 6,893.48/x
  3. Step 3: Cross multiply
    13,469.06x = 20,205.22 × 6,893.48
  4. Step 4: Simplify right side
    13,469.06x = 139,284,279.97
  5. Step 5: Solve for x
    x = 139,284,279.97/13,469.06
  6. Step 6: Final answer
    x = 10,341.05

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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.