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Finding the Fourth Proportional to 4,913.78, 7,370.67 and 1,450.22

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Solution

The fourth proportional to 4,913.78, 7,370.67 and 1,450.22 is: 2,175.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,913.78 : 7,370.67 = 1,450.22 : x
  2. Step 2: Convert to fraction form
    4,913.78/7,370.67 = 1,450.22/x
  3. Step 3: Cross multiply
    4,913.78x = 7,370.67 × 1,450.22
  4. Step 4: Simplify right side
    4,913.78x = 10,689,093.05
  5. Step 5: Solve for x
    x = 10,689,093.05/4,913.78
  6. Step 6: Final answer
    x = 2,175.33

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1.5x scale

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.