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Finding the Fourth Proportional to 45,198.34, 67,797.62 and 13,608.49

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Solution

The fourth proportional to 45,198.34, 67,797.62 and 13,608.49 is: 20,412.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,198.34 : 67,797.62 = 13,608.49 : x
  2. Step 2: Convert to fraction form
    45,198.34/67,797.62 = 13,608.49/x
  3. Step 3: Cross multiply
    45,198.34x = 67,797.62 × 13,608.49
  4. Step 4: Simplify right side
    45,198.34x = 922,623,174.41
  5. Step 5: Solve for x
    x = 922,623,174.41/45,198.34
  6. Step 6: Final answer
    x = 20,412.77

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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.