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Finding the Fourth Proportional to 50,601, 69,829.42 and 28,245

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Solution

The fourth proportional to 50,601, 69,829.42 and 28,245 is: 38,978.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,601 : 69,829.42 = 28,245 : x
  2. Step 2: Convert to fraction form
    50,601/69,829.42 = 28,245/x
  3. Step 3: Cross multiply
    50,601x = 69,829.42 × 28,245
  4. Step 4: Simplify right side
    50,601x = 1,972,331,967.90
  5. Step 5: Solve for x
    x = 1,972,331,967.90/50,601
  6. Step 6: Final answer
    x = 38,978.12

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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.