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Finding the Fourth Proportional to 18,692.12, 27,952.94 and 13,951.64

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Solution

The fourth proportional to 18,692.12, 27,952.94 and 13,951.64 is: 20,863.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,692.12 : 27,952.94 = 13,951.64 : x
  2. Step 2: Convert to fraction form
    18,692.12/27,952.94 = 13,951.64/x
  3. Step 3: Cross multiply
    18,692.12x = 27,952.94 × 13,951.64
  4. Step 4: Simplify right side
    18,692.12x = 389,989,460.58
  5. Step 5: Solve for x
    x = 389,989,460.58/18,692.12
  6. Step 6: Final answer
    x = 20,863.84

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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.