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Finding the Fourth Proportional to 13,198.48, 19,797.72 and 12,323.68

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Solution

The fourth proportional to 13,198.48, 19,797.72 and 12,323.68 is: 18,485.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,198.48 : 19,797.72 = 12,323.68 : x
  2. Step 2: Convert to fraction form
    13,198.48/19,797.72 = 12,323.68/x
  3. Step 3: Cross multiply
    13,198.48x = 19,797.72 × 12,323.68
  4. Step 4: Simplify right side
    13,198.48x = 243,980,670.30
  5. Step 5: Solve for x
    x = 243,980,670.30/13,198.48
  6. Step 6: Final answer
    x = 18,485.52

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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.