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Finding the Fourth Proportional to 4,608.60, 6,361.04 and 2,620.40

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Solution

The fourth proportional to 4,608.60, 6,361.04 and 2,620.40 is: 3,616.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,608.60 : 6,361.04 = 2,620.40 : x
  2. Step 2: Convert to fraction form
    4,608.60/6,361.04 = 2,620.40/x
  3. Step 3: Cross multiply
    4,608.60x = 6,361.04 × 2,620.40
  4. Step 4: Simplify right side
    4,608.60x = 16,668,469.22
  5. Step 5: Solve for x
    x = 16,668,469.22/4,608.60
  6. Step 6: Final answer
    x = 3,616.82

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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.