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Finding the Fourth Proportional to 18,059.00, 27,090.32 and 6,811.52

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Solution

The fourth proportional to 18,059.00, 27,090.32 and 6,811.52 is: 10,217.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,059.00 : 27,090.32 = 6,811.52 : x
  2. Step 2: Convert to fraction form
    18,059.00/27,090.32 = 6,811.52/x
  3. Step 3: Cross multiply
    18,059.00x = 27,090.32 × 6,811.52
  4. Step 4: Simplify right side
    18,059.00x = 184,526,220.64
  5. Step 5: Solve for x
    x = 184,526,220.64/18,059.00
  6. Step 6: Final answer
    x = 10,217.96

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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.