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Finding the Fourth Proportional to 17,380.79, 26,051.01 and 8,001.11

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Solution

The fourth proportional to 17,380.79, 26,051.01 and 8,001.11 is: 11,992.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,380.79 : 26,051.01 = 8,001.11 : x
  2. Step 2: Convert to fraction form
    17,380.79/26,051.01 = 8,001.11/x
  3. Step 3: Cross multiply
    17,380.79x = 26,051.01 × 8,001.11
  4. Step 4: Simplify right side
    17,380.79x = 208,436,996.62
  5. Step 5: Solve for x
    x = 208,436,996.62/17,380.79
  6. Step 6: Final answer
    x = 11,992.38

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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.