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Finding the Fourth Proportional to 4,930.56, 7,396.56 and 1,643.04

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Solution

The fourth proportional to 4,930.56, 7,396.56 and 1,643.04 is: 2,464.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,930.56 : 7,396.56 = 1,643.04 : x
  2. Step 2: Convert to fraction form
    4,930.56/7,396.56 = 1,643.04/x
  3. Step 3: Cross multiply
    4,930.56x = 7,396.56 × 1,643.04
  4. Step 4: Simplify right side
    4,930.56x = 12,152,843.94
  5. Step 5: Solve for x
    x = 12,152,843.94/4,930.56
  6. Step 6: Final answer
    x = 2,464.80

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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.