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Finding the Fourth Proportional to 18,692.82, 25,795.74 and 10,194.96

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Solution

The fourth proportional to 18,692.82, 25,795.74 and 10,194.96 is: 14,068.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,692.82 : 25,795.74 = 10,194.96 : x
  2. Step 2: Convert to fraction form
    18,692.82/25,795.74 = 10,194.96/x
  3. Step 3: Cross multiply
    18,692.82x = 25,795.74 × 10,194.96
  4. Step 4: Simplify right side
    18,692.82x = 262,986,537.47
  5. Step 5: Solve for x
    x = 262,986,537.47/18,692.82
  6. Step 6: Final answer
    x = 14,068.85

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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.