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Finding the Fourth Proportional to 18,003.30, 27,004.74 and 6,156.96

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Solution

The fourth proportional to 18,003.30, 27,004.74 and 6,156.96 is: 9,235.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,003.30 : 27,004.74 = 6,156.96 : x
  2. Step 2: Convert to fraction form
    18,003.30/27,004.74 = 6,156.96/x
  3. Step 3: Cross multiply
    18,003.30x = 27,004.74 × 6,156.96
  4. Step 4: Simplify right side
    18,003.30x = 166,267,103.99
  5. Step 5: Solve for x
    x = 166,267,103.99/18,003.30
  6. Step 6: Final answer
    x = 9,235.37

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1.5x scale

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.