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Finding the Fourth Proportional to 11,960.40, 17,932.49 and 6,699.03

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Solution

The fourth proportional to 11,960.40, 17,932.49 and 6,699.03 is: 10,043.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,960.40 : 17,932.49 = 6,699.03 : x
  2. Step 2: Convert to fraction form
    11,960.40/17,932.49 = 6,699.03/x
  3. Step 3: Cross multiply
    11,960.40x = 17,932.49 × 6,699.03
  4. Step 4: Simplify right side
    11,960.40x = 120,130,212.86
  5. Step 5: Solve for x
    x = 120,130,212.86/11,960.40
  6. Step 6: Final answer
    x = 10,043.99

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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.