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Finding the Fourth Proportional to 7,873.08, 11,816.80 and 4,956.60

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Solution

The fourth proportional to 7,873.08, 11,816.80 and 4,956.60 is: 7,439.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,873.08 : 11,816.80 = 4,956.60 : x
  2. Step 2: Convert to fraction form
    7,873.08/11,816.80 = 4,956.60/x
  3. Step 3: Cross multiply
    7,873.08x = 11,816.80 × 4,956.60
  4. Step 4: Simplify right side
    7,873.08x = 58,571,150.88
  5. Step 5: Solve for x
    x = 58,571,150.88/7,873.08
  6. Step 6: Final answer
    x = 7,439.42

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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.