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Finding the Fourth Proportional to 18,176.91, 25,084.86 and 10,219.11

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Solution

The fourth proportional to 18,176.91, 25,084.86 and 10,219.11 is: 14,102.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,176.91 : 25,084.86 = 10,219.11 : x
  2. Step 2: Convert to fraction form
    18,176.91/25,084.86 = 10,219.11/x
  3. Step 3: Cross multiply
    18,176.91x = 25,084.86 × 10,219.11
  4. Step 4: Simplify right side
    18,176.91x = 256,344,943.67
  5. Step 5: Solve for x
    x = 256,344,943.67/18,176.91
  6. Step 6: Final answer
    x = 14,102.78

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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.