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Finding the Fourth Proportional to 4,787.11, 7,175.20 and 2,597.68

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Solution

The fourth proportional to 4,787.11, 7,175.20 and 2,597.68 is: 3,893.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,787.11 : 7,175.20 = 2,597.68 : x
  2. Step 2: Convert to fraction form
    4,787.11/7,175.20 = 2,597.68/x
  3. Step 3: Cross multiply
    4,787.11x = 7,175.20 × 2,597.68
  4. Step 4: Simplify right side
    4,787.11x = 18,638,873.54
  5. Step 5: Solve for x
    x = 18,638,873.54/4,787.11
  6. Step 6: Final answer
    x = 3,893.55

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Why These Related Problems?

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