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Finding the Fourth Proportional to 53,893.30, 74,375.04 and 30,019.98

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Solution

The fourth proportional to 53,893.30, 74,375.04 and 30,019.98 is: 41,428.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,893.30 : 74,375.04 = 30,019.98 : x
  2. Step 2: Convert to fraction form
    53,893.30/74,375.04 = 30,019.98/x
  3. Step 3: Cross multiply
    53,893.30x = 74,375.04 × 30,019.98
  4. Step 4: Simplify right side
    53,893.30x = 2,232,737,213.30
  5. Step 5: Solve for x
    x = 2,232,737,213.30/53,893.30
  6. Step 6: Final answer
    x = 41,428.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.