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Finding the Fourth Proportional to 54,928.80, 82,393.20 and 41,806.80

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Solution

The fourth proportional to 54,928.80, 82,393.20 and 41,806.80 is: 62,710.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,928.80 : 82,393.20 = 41,806.80 : x
  2. Step 2: Convert to fraction form
    54,928.80/82,393.20 = 41,806.80/x
  3. Step 3: Cross multiply
    54,928.80x = 82,393.20 × 41,806.80
  4. Step 4: Simplify right side
    54,928.80x = 3,444,596,033.76
  5. Step 5: Solve for x
    x = 3,444,596,033.76/54,928.80
  6. Step 6: Final answer
    x = 62,710.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.