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Finding the Fourth Proportional to 11,661.98, 17,493.03 and 4,638.87

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Solution

The fourth proportional to 11,661.98, 17,493.03 and 4,638.87 is: 6,958.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,661.98 : 17,493.03 = 4,638.87 : x
  2. Step 2: Convert to fraction form
    11,661.98/17,493.03 = 4,638.87/x
  3. Step 3: Cross multiply
    11,661.98x = 17,493.03 × 4,638.87
  4. Step 4: Simplify right side
    11,661.98x = 81,147,892.08
  5. Step 5: Solve for x
    x = 81,147,892.08/11,661.98
  6. Step 6: Final answer
    x = 6,958.33

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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.