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Finding the Fourth Proportional to 18,485.92, 25,522.49 and 16,493.02

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Solution

The fourth proportional to 18,485.92, 25,522.49 and 16,493.02 is: 22,771.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,485.92 : 25,522.49 = 16,493.02 : x
  2. Step 2: Convert to fraction form
    18,485.92/25,522.49 = 16,493.02/x
  3. Step 3: Cross multiply
    18,485.92x = 25,522.49 × 16,493.02
  4. Step 4: Simplify right side
    18,485.92x = 420,942,810.41
  5. Step 5: Solve for x
    x = 420,942,810.41/18,485.92
  6. Step 6: Final answer
    x = 22,771.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.