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Finding the Fourth Proportional to 45,843.39, 68,754.55 and 12,566.05

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Solution

The fourth proportional to 45,843.39, 68,754.55 and 12,566.05 is: 18,846.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,843.39 : 68,754.55 = 12,566.05 : x
  2. Step 2: Convert to fraction form
    45,843.39/68,754.55 = 12,566.05/x
  3. Step 3: Cross multiply
    45,843.39x = 68,754.55 × 12,566.05
  4. Step 4: Simplify right side
    45,843.39x = 863,972,909.73
  5. Step 5: Solve for x
    x = 863,972,909.73/45,843.39
  6. Step 6: Final answer
    x = 18,846.18

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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.