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Finding the Fourth Proportional to 62,811.73, 94,223.74 and 20,674.62

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Solution

The fourth proportional to 62,811.73, 94,223.74 and 20,674.62 is: 31,013.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,811.73 : 94,223.74 = 20,674.62 : x
  2. Step 2: Convert to fraction form
    62,811.73/94,223.74 = 20,674.62/x
  3. Step 3: Cross multiply
    62,811.73x = 94,223.74 × 20,674.62
  4. Step 4: Simplify right side
    62,811.73x = 1,948,040,019.48
  5. Step 5: Solve for x
    x = 1,948,040,019.48/62,811.73
  6. Step 6: Final answer
    x = 31,013.95

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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.