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Finding the Fourth Proportional to 7,618.25, 10,513.22 and 4,261.21

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Solution

The fourth proportional to 7,618.25, 10,513.22 and 4,261.21 is: 5,880.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,618.25 : 10,513.22 = 4,261.21 : x
  2. Step 2: Convert to fraction form
    7,618.25/10,513.22 = 4,261.21/x
  3. Step 3: Cross multiply
    7,618.25x = 10,513.22 × 4,261.21
  4. Step 4: Simplify right side
    7,618.25x = 44,798,990.61
  5. Step 5: Solve for x
    x = 44,798,990.61/7,618.25
  6. Step 6: Final answer
    x = 5,880.48

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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.