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Finding the Fourth Proportional to 7,183.76, 9,907.97 and 4,916.44

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Solution

The fourth proportional to 7,183.76, 9,907.97 and 4,916.44 is: 6,780.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,183.76 : 9,907.97 = 4,916.44 : x
  2. Step 2: Convert to fraction form
    7,183.76/9,907.97 = 4,916.44/x
  3. Step 3: Cross multiply
    7,183.76x = 9,907.97 × 4,916.44
  4. Step 4: Simplify right side
    7,183.76x = 48,711,940.03
  5. Step 5: Solve for x
    x = 48,711,940.03/7,183.76
  6. Step 6: Final answer
    x = 6,780.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.