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Finding the Fourth Proportional to 16,692.18, 23,035.48 and 9,138.38

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Solution

The fourth proportional to 16,692.18, 23,035.48 and 9,138.38 is: 12,611.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,692.18 : 23,035.48 = 9,138.38 : x
  2. Step 2: Convert to fraction form
    16,692.18/23,035.48 = 9,138.38/x
  3. Step 3: Cross multiply
    16,692.18x = 23,035.48 × 9,138.38
  4. Step 4: Simplify right side
    16,692.18x = 210,507,027.31
  5. Step 5: Solve for x
    x = 210,507,027.31/16,692.18
  6. Step 6: Final answer
    x = 12,611.12

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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.