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Finding the Fourth Proportional to 43,855.93, 65,679.46 and 28,011.88

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Solution

The fourth proportional to 43,855.93, 65,679.46 and 28,011.88 is: 41,951.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,855.93 : 65,679.46 = 28,011.88 : x
  2. Step 2: Convert to fraction form
    43,855.93/65,679.46 = 28,011.88/x
  3. Step 3: Cross multiply
    43,855.93x = 65,679.46 × 28,011.88
  4. Step 4: Simplify right side
    43,855.93x = 1,839,804,794.61
  5. Step 5: Solve for x
    x = 1,839,804,794.61/43,855.93
  6. Step 6: Final answer
    x = 41,951.11

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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.