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Finding the Fourth Proportional to 11,661.80, 16,093.26 and 6,625.80

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Solution

The fourth proportional to 11,661.80, 16,093.26 and 6,625.80 is: 9,143.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,661.80 : 16,093.26 = 6,625.80 : x
  2. Step 2: Convert to fraction form
    11,661.80/16,093.26 = 6,625.80/x
  3. Step 3: Cross multiply
    11,661.80x = 16,093.26 × 6,625.80
  4. Step 4: Simplify right side
    11,661.80x = 106,630,722.11
  5. Step 5: Solve for x
    x = 106,630,722.11/11,661.80
  6. Step 6: Final answer
    x = 9,143.59

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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.