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Finding the Fourth Proportional to 7,236.63, 9,986.36 and 4,092.75

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Solution

The fourth proportional to 7,236.63, 9,986.36 and 4,092.75 is: 5,647.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,236.63 : 9,986.36 = 4,092.75 : x
  2. Step 2: Convert to fraction form
    7,236.63/9,986.36 = 4,092.75/x
  3. Step 3: Cross multiply
    7,236.63x = 9,986.36 × 4,092.75
  4. Step 4: Simplify right side
    7,236.63x = 40,871,654.43
  5. Step 5: Solve for x
    x = 40,871,654.43/7,236.63
  6. Step 6: Final answer
    x = 5,647.89

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