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Finding the Fourth Proportional to 18,676.01, 25,771.97 and 10,178.11

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Solution

The fourth proportional to 18,676.01, 25,771.97 and 10,178.11 is: 14,045.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,676.01 : 25,771.97 = 10,178.11 : x
  2. Step 2: Convert to fraction form
    18,676.01/25,771.97 = 10,178.11/x
  3. Step 3: Cross multiply
    18,676.01x = 25,771.97 × 10,178.11
  4. Step 4: Simplify right side
    18,676.01x = 262,309,816.72
  5. Step 5: Solve for x
    x = 262,309,816.72/18,676.01
  6. Step 6: Final answer
    x = 14,045.28

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