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Finding the Fourth Proportional to 18,131.00, 27,193.34 and 4,980.24

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Solution

The fourth proportional to 18,131.00, 27,193.34 and 4,980.24 is: 7,469.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,131.00 : 27,193.34 = 4,980.24 : x
  2. Step 2: Convert to fraction form
    18,131.00/27,193.34 = 4,980.24/x
  3. Step 3: Cross multiply
    18,131.00x = 27,193.34 × 4,980.24
  4. Step 4: Simplify right side
    18,131.00x = 135,429,334.70
  5. Step 5: Solve for x
    x = 135,429,334.70/18,131.00
  6. Step 6: Final answer
    x = 7,469.49

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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.