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Finding the Fourth Proportional to 6,930.96, 9,564.90 and 3,787.20

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Solution

The fourth proportional to 6,930.96, 9,564.90 and 3,787.20 is: 5,226.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,930.96 : 9,564.90 = 3,787.20 : x
  2. Step 2: Convert to fraction form
    6,930.96/9,564.90 = 3,787.20/x
  3. Step 3: Cross multiply
    6,930.96x = 9,564.90 × 3,787.20
  4. Step 4: Simplify right side
    6,930.96x = 36,224,189.28
  5. Step 5: Solve for x
    x = 36,224,189.28/6,930.96
  6. Step 6: Final answer
    x = 5,226.43

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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.