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Finding the Fourth Proportional to 6,732.63, 9,291.62 and 3,939.03

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Solution

The fourth proportional to 6,732.63, 9,291.62 and 3,939.03 is: 5,436.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,732.63 : 9,291.62 = 3,939.03 : x
  2. Step 2: Convert to fraction form
    6,732.63/9,291.62 = 3,939.03/x
  3. Step 3: Cross multiply
    6,732.63x = 9,291.62 × 3,939.03
  4. Step 4: Simplify right side
    6,732.63x = 36,599,950.23
  5. Step 5: Solve for x
    x = 36,599,950.23/6,732.63
  6. Step 6: Final answer
    x = 5,436.20

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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.