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Finding the Fourth Proportional to 5,476.78, 8,195.10 and 3,397.90

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Solution

The fourth proportional to 5,476.78, 8,195.10 and 3,397.90 is: 5,084.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,476.78 : 8,195.10 = 3,397.90 : x
  2. Step 2: Convert to fraction form
    5,476.78/8,195.10 = 3,397.90/x
  3. Step 3: Cross multiply
    5,476.78x = 8,195.10 × 3,397.90
  4. Step 4: Simplify right side
    5,476.78x = 27,846,130.29
  5. Step 5: Solve for x
    x = 27,846,130.29/5,476.78
  6. Step 6: Final answer
    x = 5,084.40

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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.