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Finding the Fourth Proportional to 7,081.91, 9,773.01 and 3,938.10

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Solution

The fourth proportional to 7,081.91, 9,773.01 and 3,938.10 is: 5,434.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,081.91 : 9,773.01 = 3,938.10 : x
  2. Step 2: Convert to fraction form
    7,081.91/9,773.01 = 3,938.10/x
  3. Step 3: Cross multiply
    7,081.91x = 9,773.01 × 3,938.10
  4. Step 4: Simplify right side
    7,081.91x = 38,487,022.13
  5. Step 5: Solve for x
    x = 38,487,022.13/7,081.91
  6. Step 6: Final answer
    x = 5,434.55

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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.