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Finding the Fourth Proportional to 18,692.95, 25,796.30 and 10,195.09

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Solution

The fourth proportional to 18,692.95, 25,796.30 and 10,195.09 is: 14,069.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,692.95 : 25,796.30 = 10,195.09 : x
  2. Step 2: Convert to fraction form
    18,692.95/25,796.30 = 10,195.09/x
  3. Step 3: Cross multiply
    18,692.95x = 25,796.30 × 10,195.09
  4. Step 4: Simplify right side
    18,692.95x = 262,995,600.17
  5. Step 5: Solve for x
    x = 262,995,600.17/18,692.95
  6. Step 6: Final answer
    x = 14,069.24

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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.