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Finding the Fourth Proportional to 12,793.92, 19,166.26 and 7,849.12

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Solution

The fourth proportional to 12,793.92, 19,166.26 and 7,849.12 is: 11,758.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,793.92 : 19,166.26 = 7,849.12 : x
  2. Step 2: Convert to fraction form
    12,793.92/19,166.26 = 7,849.12/x
  3. Step 3: Cross multiply
    12,793.92x = 19,166.26 × 7,849.12
  4. Step 4: Simplify right side
    12,793.92x = 150,438,274.69
  5. Step 5: Solve for x
    x = 150,438,274.69/12,793.92
  6. Step 6: Final answer
    x = 11,758.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.