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Finding the Fourth Proportional to 8,997.60, 13,474.80 and 4,375.20

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Solution

The fourth proportional to 8,997.60, 13,474.80 and 4,375.20 is: 6,552.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,997.60 : 13,474.80 = 4,375.20 : x
  2. Step 2: Convert to fraction form
    8,997.60/13,474.80 = 4,375.20/x
  3. Step 3: Cross multiply
    8,997.60x = 13,474.80 × 4,375.20
  4. Step 4: Simplify right side
    8,997.60x = 58,954,944.96
  5. Step 5: Solve for x
    x = 58,954,944.96/8,997.60
  6. Step 6: Final answer
    x = 6,552.30

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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.