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Finding the Fourth Proportional to 12,195.46, 18,295.74 and 6,932.89

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Solution

The fourth proportional to 12,195.46, 18,295.74 and 6,932.89 is: 10,400.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,195.46 : 18,295.74 = 6,932.89 : x
  2. Step 2: Convert to fraction form
    12,195.46/18,295.74 = 6,932.89/x
  3. Step 3: Cross multiply
    12,195.46x = 18,295.74 × 6,932.89
  4. Step 4: Simplify right side
    12,195.46x = 126,842,375.76
  5. Step 5: Solve for x
    x = 126,842,375.76/12,195.46
  6. Step 6: Final answer
    x = 10,400.79

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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.