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Finding the Fourth Proportional to 11,842.40, 17,740.20 and 6,003.20

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Solution

The fourth proportional to 11,842.40, 17,740.20 and 6,003.20 is: 8,992.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,842.40 : 17,740.20 = 6,003.20 : x
  2. Step 2: Convert to fraction form
    11,842.40/17,740.20 = 6,003.20/x
  3. Step 3: Cross multiply
    11,842.40x = 17,740.20 × 6,003.20
  4. Step 4: Simplify right side
    11,842.40x = 106,497,968.64
  5. Step 5: Solve for x
    x = 106,497,968.64/11,842.40
  6. Step 6: Final answer
    x = 8,992.94

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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.