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Finding the Fourth Proportional to 19,268.62, 28,905.24 and 6,786.06

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Solution

The fourth proportional to 19,268.62, 28,905.24 and 6,786.06 is: 10,179.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,268.62 : 28,905.24 = 6,786.06 : x
  2. Step 2: Convert to fraction form
    19,268.62/28,905.24 = 6,786.06/x
  3. Step 3: Cross multiply
    19,268.62x = 28,905.24 × 6,786.06
  4. Step 4: Simplify right side
    19,268.62x = 196,152,692.95
  5. Step 5: Solve for x
    x = 196,152,692.95/19,268.62
  6. Step 6: Final answer
    x = 10,179.90

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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.