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Finding the Fourth Proportional to 51,791.67, 71,477.98 and 31,660.33

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Solution

The fourth proportional to 51,791.67, 71,477.98 and 31,660.33 is: 43,694.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,791.67 : 71,477.98 = 31,660.33 : x
  2. Step 2: Convert to fraction form
    51,791.67/71,477.98 = 31,660.33/x
  3. Step 3: Cross multiply
    51,791.67x = 71,477.98 × 31,660.33
  4. Step 4: Simplify right side
    51,791.67x = 2,263,016,434.53
  5. Step 5: Solve for x
    x = 2,263,016,434.53/51,791.67
  6. Step 6: Final answer
    x = 43,694.60

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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.