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Finding the Fourth Proportional to 18,692.46, 28,042.56 and 7,599.15

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Solution

The fourth proportional to 18,692.46, 28,042.56 and 7,599.15 is: 11,400.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,692.46 : 28,042.56 = 7,599.15 : x
  2. Step 2: Convert to fraction form
    18,692.46/28,042.56 = 7,599.15/x
  3. Step 3: Cross multiply
    18,692.46x = 28,042.56 × 7,599.15
  4. Step 4: Simplify right side
    18,692.46x = 213,099,619.82
  5. Step 5: Solve for x
    x = 213,099,619.82/18,692.46
  6. Step 6: Final answer
    x = 11,400.30

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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.