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Finding the Fourth Proportional to 18,809,155.81, 25,956,919.43 and 10,551,048.67

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Solution

The fourth proportional to 18,809,155.81, 25,956,919.43 and 10,551,048.67 is: 14,560,606.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,809,155.81 : 25,956,919.43 = 10,551,048.67 : x
  2. Step 2: Convert to fraction form
    18,809,155.81/25,956,919.43 = 10,551,048.67/x
  3. Step 3: Cross multiply
    18,809,155.81x = 25,956,919.43 × 10,551,048.67
  4. Step 4: Simplify right side
    18,809,155.81x = 273,872,720,229,198.66
  5. Step 5: Solve for x
    x = 273,872,720,229,198.66/18,809,155.81
  6. Step 6: Final answer
    x = 14,560,606.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.