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Finding the Fourth Proportional to 18,193.50, 25,121.52 and 11,823.24

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Solution

The fourth proportional to 18,193.50, 25,121.52 and 11,823.24 is: 16,325.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,193.50 : 25,121.52 = 11,823.24 : x
  2. Step 2: Convert to fraction form
    18,193.50/25,121.52 = 11,823.24/x
  3. Step 3: Cross multiply
    18,193.50x = 25,121.52 × 11,823.24
  4. Step 4: Simplify right side
    18,193.50x = 297,017,760.12
  5. Step 5: Solve for x
    x = 297,017,760.12/18,193.50
  6. Step 6: Final answer
    x = 16,325.49

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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.