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Finding the Fourth Proportional to 18,287.01, 27,431.46 and 5,808.02

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Solution

The fourth proportional to 18,287.01, 27,431.46 and 5,808.02 is: 8,712.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,287.01 : 27,431.46 = 5,808.02 : x
  2. Step 2: Convert to fraction form
    18,287.01/27,431.46 = 5,808.02/x
  3. Step 3: Cross multiply
    18,287.01x = 27,431.46 × 5,808.02
  4. Step 4: Simplify right side
    18,287.01x = 159,322,331.15
  5. Step 5: Solve for x
    x = 159,322,331.15/18,287.01
  6. Step 6: Final answer
    x = 8,712.32

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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.