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Finding the Fourth Proportional to 70,083.87, 96,728.27 and 41,791.38

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Solution

The fourth proportional to 70,083.87, 96,728.27 and 41,791.38 is: 57,679.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,083.87 : 96,728.27 = 41,791.38 : x
  2. Step 2: Convert to fraction form
    70,083.87/96,728.27 = 41,791.38/x
  3. Step 3: Cross multiply
    70,083.87x = 96,728.27 × 41,791.38
  4. Step 4: Simplify right side
    70,083.87x = 4,042,407,888.31
  5. Step 5: Solve for x
    x = 4,042,407,888.31/70,083.87
  6. Step 6: Final answer
    x = 57,679.58

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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.