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Finding the Fourth Proportional to 3,946,751.07, 5,446,516.43 and 2,135,915.07

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Solution

The fourth proportional to 3,946,751.07, 5,446,516.43 and 2,135,915.07 is: 2,947,562.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,946,751.07 : 5,446,516.43 = 2,135,915.07 : x
  2. Step 2: Convert to fraction form
    3,946,751.07/5,446,516.43 = 2,135,915.07/x
  3. Step 3: Cross multiply
    3,946,751.07x = 5,446,516.43 × 2,135,915.07
  4. Step 4: Simplify right side
    3,946,751.07x = 11,633,296,511,160.02
  5. Step 5: Solve for x
    x = 11,633,296,511,160.02/3,946,751.07
  6. Step 6: Final answer
    x = 2,947,562.77

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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.