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Finding the Fourth Proportional to 3,627.60, 5,441.40 and 3,224.40

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Solution

The fourth proportional to 3,627.60, 5,441.40 and 3,224.40 is: 4,836.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,627.60 : 5,441.40 = 3,224.40 : x
  2. Step 2: Convert to fraction form
    3,627.60/5,441.40 = 3,224.40/x
  3. Step 3: Cross multiply
    3,627.60x = 5,441.40 × 3,224.40
  4. Step 4: Simplify right side
    3,627.60x = 17,545,250.16
  5. Step 5: Solve for x
    x = 17,545,250.16/3,627.60
  6. Step 6: Final answer
    x = 4,836.60

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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.