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Finding the Fourth Proportional to 13,124.56, 18,112.23 and 8,092.10

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Solution

The fourth proportional to 13,124.56, 18,112.23 and 8,092.10 is: 11,167.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,124.56 : 18,112.23 = 8,092.10 : x
  2. Step 2: Convert to fraction form
    13,124.56/18,112.23 = 8,092.10/x
  3. Step 3: Cross multiply
    13,124.56x = 18,112.23 × 8,092.10
  4. Step 4: Simplify right side
    13,124.56x = 146,566,044.42
  5. Step 5: Solve for x
    x = 146,566,044.42/13,124.56
  6. Step 6: Final answer
    x = 11,167.31

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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.