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Finding the Fourth Proportional to 18,782,137.82, 25,919,292.38 and 10,410,041.40

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Solution

The fourth proportional to 18,782,137.82, 25,919,292.38 and 10,410,041.40 is: 14,365,825.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,782,137.82 : 25,919,292.38 = 10,410,041.40 : x
  2. Step 2: Convert to fraction form
    18,782,137.82/25,919,292.38 = 10,410,041.40/x
  3. Step 3: Cross multiply
    18,782,137.82x = 25,919,292.38 × 10,410,041.40
  4. Step 4: Simplify right side
    18,782,137.82x = 269,820,906,734,504.53
  5. Step 5: Solve for x
    x = 269,820,906,734,504.53/18,782,137.82
  6. Step 6: Final answer
    x = 14,365,825.09

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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.