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Finding the Fourth Proportional to 11,698.46, 16,138.22 and 8,506.80

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Solution

The fourth proportional to 11,698.46, 16,138.22 and 8,506.80 is: 11,735.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,698.46 : 16,138.22 = 8,506.80 : x
  2. Step 2: Convert to fraction form
    11,698.46/16,138.22 = 8,506.80/x
  3. Step 3: Cross multiply
    11,698.46x = 16,138.22 × 8,506.80
  4. Step 4: Simplify right side
    11,698.46x = 137,284,609.90
  5. Step 5: Solve for x
    x = 137,284,609.90/11,698.46
  6. Step 6: Final answer
    x = 11,735.27

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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.