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Finding the Fourth Proportional to 18,483.63, 27,721.99 and 6,003.78

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Solution

The fourth proportional to 18,483.63, 27,721.99 and 6,003.78 is: 9,004.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,483.63 : 27,721.99 = 6,003.78 : x
  2. Step 2: Convert to fraction form
    18,483.63/27,721.99 = 6,003.78/x
  3. Step 3: Cross multiply
    18,483.63x = 27,721.99 × 6,003.78
  4. Step 4: Simplify right side
    18,483.63x = 166,436,729.12
  5. Step 5: Solve for x
    x = 166,436,729.12/18,483.63
  6. Step 6: Final answer
    x = 9,004.55

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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.