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Finding the Fourth Proportional to 12,197.81, 16,832.99 and 6,608.81

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Solution

The fourth proportional to 12,197.81, 16,832.99 and 6,608.81 is: 9,120.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,197.81 : 16,832.99 = 6,608.81 : x
  2. Step 2: Convert to fraction form
    12,197.81/16,832.99 = 6,608.81/x
  3. Step 3: Cross multiply
    12,197.81x = 16,832.99 × 6,608.81
  4. Step 4: Simplify right side
    12,197.81x = 111,246,041.68
  5. Step 5: Solve for x
    x = 111,246,041.68/12,197.81
  6. Step 6: Final answer
    x = 9,120.16

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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.