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Finding the Fourth Proportional to 18,049.30, 27,055.78 and 7,525.15

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Solution

The fourth proportional to 18,049.30, 27,055.78 and 7,525.15 is: 11,280.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,049.30 : 27,055.78 = 7,525.15 : x
  2. Step 2: Convert to fraction form
    18,049.30/27,055.78 = 7,525.15/x
  3. Step 3: Cross multiply
    18,049.30x = 27,055.78 × 7,525.15
  4. Step 4: Simplify right side
    18,049.30x = 203,598,716.41
  5. Step 5: Solve for x
    x = 203,598,716.41/18,049.30
  6. Step 6: Final answer
    x = 11,280.15

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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.