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Finding the Fourth Proportional to 16,692.87, 23,035.43 and 9,139.22

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Solution

The fourth proportional to 16,692.87, 23,035.43 and 9,139.22 is: 12,611.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,692.87 : 23,035.43 = 9,139.22 : x
  2. Step 2: Convert to fraction form
    16,692.87/23,035.43 = 9,139.22/x
  3. Step 3: Cross multiply
    16,692.87x = 23,035.43 × 9,139.22
  4. Step 4: Simplify right side
    16,692.87x = 210,525,770.24
  5. Step 5: Solve for x
    x = 210,525,770.24/16,692.87
  6. Step 6: Final answer
    x = 12,611.72

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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.