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Finding the Fourth Proportional to 8,474.16, 11,692.12 and 5,118.84

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Solution

The fourth proportional to 8,474.16, 11,692.12 and 5,118.84 is: 7,062.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,474.16 : 11,692.12 = 5,118.84 : x
  2. Step 2: Convert to fraction form
    8,474.16/11,692.12 = 5,118.84/x
  3. Step 3: Cross multiply
    8,474.16x = 11,692.12 × 5,118.84
  4. Step 4: Simplify right side
    8,474.16x = 59,850,091.54
  5. Step 5: Solve for x
    x = 59,850,091.54/8,474.16
  6. Step 6: Final answer
    x = 7,062.66

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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.