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Finding the Fourth Proportional to 69,893.91, 96,450.31 and 39,675.24

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Solution

The fourth proportional to 69,893.91, 96,450.31 and 39,675.24 is: 54,749.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,893.91 : 96,450.31 = 39,675.24 : x
  2. Step 2: Convert to fraction form
    69,893.91/96,450.31 = 39,675.24/x
  3. Step 3: Cross multiply
    69,893.91x = 96,450.31 × 39,675.24
  4. Step 4: Simplify right side
    69,893.91x = 3,826,689,197.32
  5. Step 5: Solve for x
    x = 3,826,689,197.32/69,893.91
  6. Step 6: Final answer
    x = 54,749.97

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1.5x scale

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.