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Finding the Fourth Proportional to 28,692.84, 43,059.12 and 11,162.76

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Solution

The fourth proportional to 28,692.84, 43,059.12 and 11,162.76 is: 16,751.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,692.84 : 43,059.12 = 11,162.76 : x
  2. Step 2: Convert to fraction form
    28,692.84/43,059.12 = 11,162.76/x
  3. Step 3: Cross multiply
    28,692.84x = 43,059.12 × 11,162.76
  4. Step 4: Simplify right side
    28,692.84x = 480,658,622.37
  5. Step 5: Solve for x
    x = 480,658,622.37/28,692.84
  6. Step 6: Final answer
    x = 16,751.87

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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.