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Finding the Fourth Proportional to 18,295.68, 25,247.79 and 9,912.18

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Solution

The fourth proportional to 18,295.68, 25,247.79 and 9,912.18 is: 13,678.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,295.68 : 25,247.79 = 9,912.18 : x
  2. Step 2: Convert to fraction form
    18,295.68/25,247.79 = 9,912.18/x
  3. Step 3: Cross multiply
    18,295.68x = 25,247.79 × 9,912.18
  4. Step 4: Simplify right side
    18,295.68x = 250,260,639.08
  5. Step 5: Solve for x
    x = 250,260,639.08/18,295.68
  6. Step 6: Final answer
    x = 13,678.67

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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.