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Finding the Fourth Proportional to 62,800.43, 94,208.81 and 20,684.81

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Solution

The fourth proportional to 62,800.43, 94,208.81 and 20,684.81 is: 31,029.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,800.43 : 94,208.81 = 20,684.81 : x
  2. Step 2: Convert to fraction form
    62,800.43/94,208.81 = 20,684.81/x
  3. Step 3: Cross multiply
    62,800.43x = 94,208.81 × 20,684.81
  4. Step 4: Simplify right side
    62,800.43x = 1,948,691,467.27
  5. Step 5: Solve for x
    x = 1,948,691,467.27/62,800.43
  6. Step 6: Final answer
    x = 31,029.91

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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.