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Finding the Fourth Proportional to 11,940.30, 17,885.84 and 6,994.94

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Solution

The fourth proportional to 11,940.30, 17,885.84 and 6,994.94 is: 10,477.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,940.30 : 17,885.84 = 6,994.94 : x
  2. Step 2: Convert to fraction form
    11,940.30/17,885.84 = 6,994.94/x
  3. Step 3: Cross multiply
    11,940.30x = 17,885.84 × 6,994.94
  4. Step 4: Simplify right side
    11,940.30x = 125,110,377.65
  5. Step 5: Solve for x
    x = 125,110,377.65/11,940.30
  6. Step 6: Final answer
    x = 10,477.99

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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.