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Finding the Fourth Proportional to 18,569.79, 25,626.11 and 10,186.29

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Solution

The fourth proportional to 18,569.79, 25,626.11 and 10,186.29 is: 14,056.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,569.79 : 25,626.11 = 10,186.29 : x
  2. Step 2: Convert to fraction form
    18,569.79/25,626.11 = 10,186.29/x
  3. Step 3: Cross multiply
    18,569.79x = 25,626.11 × 10,186.29
  4. Step 4: Simplify right side
    18,569.79x = 261,034,937.10
  5. Step 5: Solve for x
    x = 261,034,937.10/18,569.79
  6. Step 6: Final answer
    x = 14,056.97

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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.