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Finding the Fourth Proportional to 16,540.80, 24,811.20 and 16,425.60

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Solution

The fourth proportional to 16,540.80, 24,811.20 and 16,425.60 is: 24,638.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,540.80 : 24,811.20 = 16,425.60 : x
  2. Step 2: Convert to fraction form
    16,540.80/24,811.20 = 16,425.60/x
  3. Step 3: Cross multiply
    16,540.80x = 24,811.20 × 16,425.60
  4. Step 4: Simplify right side
    16,540.80x = 407,538,846.72
  5. Step 5: Solve for x
    x = 407,538,846.72/16,540.80
  6. Step 6: Final answer
    x = 24,638.40

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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.