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Finding the Fourth Proportional to 12,169.68, 16,794.24 and 6,865.92

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Solution

The fourth proportional to 12,169.68, 16,794.24 and 6,865.92 is: 9,475.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,169.68 : 16,794.24 = 6,865.92 : x
  2. Step 2: Convert to fraction form
    12,169.68/16,794.24 = 6,865.92/x
  3. Step 3: Cross multiply
    12,169.68x = 16,794.24 × 6,865.92
  4. Step 4: Simplify right side
    12,169.68x = 115,307,908.30
  5. Step 5: Solve for x
    x = 115,307,908.30/12,169.68
  6. Step 6: Final answer
    x = 9,475.02

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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.