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Finding the Fourth Proportional to 12,190.97, 16,823.48 and 6,601.97

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Solution

The fourth proportional to 12,190.97, 16,823.48 and 6,601.97 is: 9,110.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,190.97 : 16,823.48 = 6,601.97 : x
  2. Step 2: Convert to fraction form
    12,190.97/16,823.48 = 6,601.97/x
  3. Step 3: Cross multiply
    12,190.97x = 16,823.48 × 6,601.97
  4. Step 4: Simplify right side
    12,190.97x = 111,068,156.44
  5. Step 5: Solve for x
    x = 111,068,156.44/12,190.97
  6. Step 6: Final answer
    x = 9,110.69

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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.