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Finding the Fourth Proportional to 23,690.68, 32,692.92 and 13,079.63

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Solution

The fourth proportional to 23,690.68, 32,692.92 and 13,079.63 is: 18,049.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,690.68 : 32,692.92 = 13,079.63 : x
  2. Step 2: Convert to fraction form
    23,690.68/32,692.92 = 13,079.63/x
  3. Step 3: Cross multiply
    23,690.68x = 32,692.92 × 13,079.63
  4. Step 4: Simplify right side
    23,690.68x = 427,611,146.01
  5. Step 5: Solve for x
    x = 427,611,146.01/23,690.68
  6. Step 6: Final answer
    x = 18,049.76

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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.