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Finding the Fourth Proportional to 18,367.49, 25,346.27 and 10,409.54

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Solution

The fourth proportional to 18,367.49, 25,346.27 and 10,409.54 is: 14,364.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,367.49 : 25,346.27 = 10,409.54 : x
  2. Step 2: Convert to fraction form
    18,367.49/25,346.27 = 10,409.54/x
  3. Step 3: Cross multiply
    18,367.49x = 25,346.27 × 10,409.54
  4. Step 4: Simplify right side
    18,367.49x = 263,842,910.71
  5. Step 5: Solve for x
    x = 263,842,910.71/18,367.49
  6. Step 6: Final answer
    x = 14,364.67

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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.