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Finding the Fourth Proportional to 69,893.43, 96,453.86 and 39,676.47

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Solution

The fourth proportional to 69,893.43, 96,453.86 and 39,676.47 is: 54,754.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,893.43 : 96,453.86 = 39,676.47 : x
  2. Step 2: Convert to fraction form
    69,893.43/96,453.86 = 39,676.47/x
  3. Step 3: Cross multiply
    69,893.43x = 96,453.86 × 39,676.47
  4. Step 4: Simplify right side
    69,893.43x = 3,826,948,682.67
  5. Step 5: Solve for x
    x = 3,826,948,682.67/69,893.43
  6. Step 6: Final answer
    x = 54,754.05

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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.