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Finding the Fourth Proportional to 7,720.26, 10,653.95 and 4,183.47

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Solution

The fourth proportional to 7,720.26, 10,653.95 and 4,183.47 is: 5,773.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,720.26 : 10,653.95 = 4,183.47 : x
  2. Step 2: Convert to fraction form
    7,720.26/10,653.95 = 4,183.47/x
  3. Step 3: Cross multiply
    7,720.26x = 10,653.95 × 4,183.47
  4. Step 4: Simplify right side
    7,720.26x = 44,570,490.67
  5. Step 5: Solve for x
    x = 44,570,490.67/7,720.26
  6. Step 6: Final answer
    x = 5,773.19

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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.