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Finding the Fourth Proportional to 10,692.82, 14,754.81 and 5,912.12

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Solution

The fourth proportional to 10,692.82, 14,754.81 and 5,912.12 is: 8,158.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,692.82 : 14,754.81 = 5,912.12 : x
  2. Step 2: Convert to fraction form
    10,692.82/14,754.81 = 5,912.12/x
  3. Step 3: Cross multiply
    10,692.82x = 14,754.81 × 5,912.12
  4. Step 4: Simplify right side
    10,692.82x = 87,232,140.85
  5. Step 5: Solve for x
    x = 87,232,140.85/10,692.82
  6. Step 6: Final answer
    x = 8,158.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.