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Finding the Fourth Proportional to 11,843.72, 17,759.78 and 6,914.60

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Solution

The fourth proportional to 11,843.72, 17,759.78 and 6,914.60 is: 10,368.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,843.72 : 17,759.78 = 6,914.60 : x
  2. Step 2: Convert to fraction form
    11,843.72/17,759.78 = 6,914.60/x
  3. Step 3: Cross multiply
    11,843.72x = 17,759.78 × 6,914.60
  4. Step 4: Simplify right side
    11,843.72x = 122,801,774.79
  5. Step 5: Solve for x
    x = 122,801,774.79/11,843.72
  6. Step 6: Final answer
    x = 10,368.51

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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.