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Finding the Fourth Proportional to 70,067.54, 96,696.11 and 39,858.19

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Solution

The fourth proportional to 70,067.54, 96,696.11 and 39,858.19 is: 55,005.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,067.54 : 96,696.11 = 39,858.19 : x
  2. Step 2: Convert to fraction form
    70,067.54/96,696.11 = 39,858.19/x
  3. Step 3: Cross multiply
    70,067.54x = 96,696.11 × 39,858.19
  4. Step 4: Simplify right side
    70,067.54x = 3,854,131,782.55
  5. Step 5: Solve for x
    x = 3,854,131,782.55/70,067.54
  6. Step 6: Final answer
    x = 55,005.95

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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.