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Finding the Fourth Proportional to 12,296.80, 18,445.20 and 3,062.80

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Solution

The fourth proportional to 12,296.80, 18,445.20 and 3,062.80 is: 4,594.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,296.80 : 18,445.20 = 3,062.80 : x
  2. Step 2: Convert to fraction form
    12,296.80/18,445.20 = 3,062.80/x
  3. Step 3: Cross multiply
    12,296.80x = 18,445.20 × 3,062.80
  4. Step 4: Simplify right side
    12,296.80x = 56,493,958.56
  5. Step 5: Solve for x
    x = 56,493,958.56/12,296.80
  6. Step 6: Final answer
    x = 4,594.20

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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.