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Finding the Fourth Proportional to 61,921.93, 85,474.07 and 36,771.25

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Solution

The fourth proportional to 61,921.93, 85,474.07 and 36,771.25 is: 50,757.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,921.93 : 85,474.07 = 36,771.25 : x
  2. Step 2: Convert to fraction form
    61,921.93/85,474.07 = 36,771.25/x
  3. Step 3: Cross multiply
    61,921.93x = 85,474.07 × 36,771.25
  4. Step 4: Simplify right side
    61,921.93x = 3,142,988,212.63
  5. Step 5: Solve for x
    x = 3,142,988,212.63/61,921.93
  6. Step 6: Final answer
    x = 50,757.27

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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.