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Finding the Fourth Proportional to 18,795,563.44, 25,889,361.48 and 13,279,362.82

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Solution

The fourth proportional to 18,795,563.44, 25,889,361.48 and 13,279,362.82 is: 18,291,243.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,795,563.44 : 25,889,361.48 = 13,279,362.82 : x
  2. Step 2: Convert to fraction form
    18,795,563.44/25,889,361.48 = 13,279,362.82/x
  3. Step 3: Cross multiply
    18,795,563.44x = 25,889,361.48 × 13,279,362.82
  4. Step 4: Simplify right side
    18,795,563.44x = 343,794,224,271,052.19
  5. Step 5: Solve for x
    x = 343,794,224,271,052.19/18,795,563.44
  6. Step 6: Final answer
    x = 18,291,243.32

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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.