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Finding the Fourth Proportional to 62,381.63, 93,573.26 and 20,828.63

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Solution

The fourth proportional to 62,381.63, 93,573.26 and 20,828.63 is: 31,243.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,381.63 : 93,573.26 = 20,828.63 : x
  2. Step 2: Convert to fraction form
    62,381.63/93,573.26 = 20,828.63/x
  3. Step 3: Cross multiply
    62,381.63x = 93,573.26 × 20,828.63
  4. Step 4: Simplify right side
    62,381.63x = 1,949,002,238.42
  5. Step 5: Solve for x
    x = 1,949,002,238.42/62,381.63
  6. Step 6: Final answer
    x = 31,243.21

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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.