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Finding the Fourth Proportional to 18,394.80, 27,624.60 and 14,244.90

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Solution

The fourth proportional to 18,394.80, 27,624.60 and 14,244.90 is: 21,392.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,394.80 : 27,624.60 = 14,244.90 : x
  2. Step 2: Convert to fraction form
    18,394.80/27,624.60 = 14,244.90/x
  3. Step 3: Cross multiply
    18,394.80x = 27,624.60 × 14,244.90
  4. Step 4: Simplify right side
    18,394.80x = 393,509,664.54
  5. Step 5: Solve for x
    x = 393,509,664.54/18,394.80
  6. Step 6: Final answer
    x = 21,392.44

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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.