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Finding the Fourth Proportional to 58,797.73, 81,137.80 and 31,940.20

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Solution

The fourth proportional to 58,797.73, 81,137.80 and 31,940.20 is: 44,075.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,797.73 : 81,137.80 = 31,940.20 : x
  2. Step 2: Convert to fraction form
    58,797.73/81,137.80 = 31,940.20/x
  3. Step 3: Cross multiply
    58,797.73x = 81,137.80 × 31,940.20
  4. Step 4: Simplify right side
    58,797.73x = 2,591,557,559.56
  5. Step 5: Solve for x
    x = 2,591,557,559.56/58,797.73
  6. Step 6: Final answer
    x = 44,075.81

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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.