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Finding the Fourth Proportional to 11,998.78, 17,984.73 and 4,093.93

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Solution

The fourth proportional to 11,998.78, 17,984.73 and 4,093.93 is: 6,136.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,998.78 : 17,984.73 = 4,093.93 : x
  2. Step 2: Convert to fraction form
    11,998.78/17,984.73 = 4,093.93/x
  3. Step 3: Cross multiply
    11,998.78x = 17,984.73 × 4,093.93
  4. Step 4: Simplify right side
    11,998.78x = 73,628,225.69
  5. Step 5: Solve for x
    x = 73,628,225.69/11,998.78
  6. Step 6: Final answer
    x = 6,136.31

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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.