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Finding the Fourth Proportional to 18,232.20, 27,421.20 and 16,336.80

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Solution

The fourth proportional to 18,232.20, 27,421.20 and 16,336.80 is: 24,570.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,232.20 : 27,421.20 = 16,336.80 : x
  2. Step 2: Convert to fraction form
    18,232.20/27,421.20 = 16,336.80/x
  3. Step 3: Cross multiply
    18,232.20x = 27,421.20 × 16,336.80
  4. Step 4: Simplify right side
    18,232.20x = 447,974,660.16
  5. Step 5: Solve for x
    x = 447,974,660.16/18,232.20
  6. Step 6: Final answer
    x = 24,570.52

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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.