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Finding the Fourth Proportional to 18,359.87, 27,520.58 and 7,692.32

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Solution

The fourth proportional to 18,359.87, 27,520.58 and 7,692.32 is: 11,530.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,359.87 : 27,520.58 = 7,692.32 : x
  2. Step 2: Convert to fraction form
    18,359.87/27,520.58 = 7,692.32/x
  3. Step 3: Cross multiply
    18,359.87x = 27,520.58 × 7,692.32
  4. Step 4: Simplify right side
    18,359.87x = 211,697,195.98
  5. Step 5: Solve for x
    x = 211,697,195.98/18,359.87
  6. Step 6: Final answer
    x = 11,530.43

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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.