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Finding the Fourth Proportional to 5,371.16, 8,055.81 and 1,422.45

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Solution

The fourth proportional to 5,371.16, 8,055.81 and 1,422.45 is: 2,133.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,371.16 : 8,055.81 = 1,422.45 : x
  2. Step 2: Convert to fraction form
    5,371.16/8,055.81 = 1,422.45/x
  3. Step 3: Cross multiply
    5,371.16x = 8,055.81 × 1,422.45
  4. Step 4: Simplify right side
    5,371.16x = 11,458,986.93
  5. Step 5: Solve for x
    x = 11,458,986.93/5,371.16
  6. Step 6: Final answer
    x = 2,133.43

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.