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Finding the Fourth Proportional to 19,992.50, 27,592.08 and 11,609

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Solution

The fourth proportional to 19,992.50, 27,592.08 and 11,609 is: 16,021.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,992.50 : 27,592.08 = 11,609 : x
  2. Step 2: Convert to fraction form
    19,992.50/27,592.08 = 11,609/x
  3. Step 3: Cross multiply
    19,992.50x = 27,592.08 × 11,609
  4. Step 4: Simplify right side
    19,992.50x = 320,316,456.72
  5. Step 5: Solve for x
    x = 320,316,456.72/19,992.50
  6. Step 6: Final answer
    x = 16,021.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.