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Finding the Fourth Proportional to 18,283.50, 25,245.49 and 14,027.80

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Solution

The fourth proportional to 18,283.50, 25,245.49 and 14,027.80 is: 19,369.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,283.50 : 25,245.49 = 14,027.80 : x
  2. Step 2: Convert to fraction form
    18,283.50/25,245.49 = 14,027.80/x
  3. Step 3: Cross multiply
    18,283.50x = 25,245.49 × 14,027.80
  4. Step 4: Simplify right side
    18,283.50x = 354,138,684.62
  5. Step 5: Solve for x
    x = 354,138,684.62/18,283.50
  6. Step 6: Final answer
    x = 19,369.30

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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.