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Finding the Fourth Proportional to 18,606.22, 25,676.80 and 10,647.96

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Solution

The fourth proportional to 18,606.22, 25,676.80 and 10,647.96 is: 14,694.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,606.22 : 25,676.80 = 10,647.96 : x
  2. Step 2: Convert to fraction form
    18,606.22/25,676.80 = 10,647.96/x
  3. Step 3: Cross multiply
    18,606.22x = 25,676.80 × 10,647.96
  4. Step 4: Simplify right side
    18,606.22x = 273,405,539.33
  5. Step 5: Solve for x
    x = 273,405,539.33/18,606.22
  6. Step 6: Final answer
    x = 14,694.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.