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Finding the Fourth Proportional to 18,600.75, 27,906.18 and 5,453.01

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Solution

The fourth proportional to 18,600.75, 27,906.18 and 5,453.01 is: 8,181.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,600.75 : 27,906.18 = 5,453.01 : x
  2. Step 2: Convert to fraction form
    18,600.75/27,906.18 = 5,453.01/x
  3. Step 3: Cross multiply
    18,600.75x = 27,906.18 × 5,453.01
  4. Step 4: Simplify right side
    18,600.75x = 152,172,678.60
  5. Step 5: Solve for x
    x = 152,172,678.60/18,600.75
  6. Step 6: Final answer
    x = 8,181.00

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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.