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Finding the Fourth Proportional to 18,490.56, 25,514.96 and 10,937.16

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Solution

The fourth proportional to 18,490.56, 25,514.96 and 10,937.16 is: 15,092.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,490.56 : 25,514.96 = 10,937.16 : x
  2. Step 2: Convert to fraction form
    18,490.56/25,514.96 = 10,937.16/x
  3. Step 3: Cross multiply
    18,490.56x = 25,514.96 × 10,937.16
  4. Step 4: Simplify right side
    18,490.56x = 279,061,199.91
  5. Step 5: Solve for x
    x = 279,061,199.91/18,490.56
  6. Step 6: Final answer
    x = 15,092.09

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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.