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Finding the Fourth Proportional to 11,996.63, 18,001.42 and 5,840.63

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Solution

The fourth proportional to 11,996.63, 18,001.42 and 5,840.63 is: 8,764.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,996.63 : 18,001.42 = 5,840.63 : x
  2. Step 2: Convert to fraction form
    11,996.63/18,001.42 = 5,840.63/x
  3. Step 3: Cross multiply
    11,996.63x = 18,001.42 × 5,840.63
  4. Step 4: Simplify right side
    11,996.63x = 105,139,529.09
  5. Step 5: Solve for x
    x = 105,139,529.09/11,996.63
  6. Step 6: Final answer
    x = 8,764.09

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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.