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Finding the Fourth Proportional to 5,269.20, 7,894.20 and 4,443.60

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Solution

The fourth proportional to 5,269.20, 7,894.20 and 4,443.60 is: 6,657.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,269.20 : 7,894.20 = 4,443.60 : x
  2. Step 2: Convert to fraction form
    5,269.20/7,894.20 = 4,443.60/x
  3. Step 3: Cross multiply
    5,269.20x = 7,894.20 × 4,443.60
  4. Step 4: Simplify right side
    5,269.20x = 35,078,667.12
  5. Step 5: Solve for x
    x = 35,078,667.12/5,269.20
  6. Step 6: Final answer
    x = 6,657.30

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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.