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Finding the Fourth Proportional to 18,261.84, 27,404.10 and 11,692.74

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Solution

The fourth proportional to 18,261.84, 27,404.10 and 11,692.74 is: 17,546.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,261.84 : 27,404.10 = 11,692.74 : x
  2. Step 2: Convert to fraction form
    18,261.84/27,404.10 = 11,692.74/x
  3. Step 3: Cross multiply
    18,261.84x = 27,404.10 × 11,692.74
  4. Step 4: Simplify right side
    18,261.84x = 320,429,016.23
  5. Step 5: Solve for x
    x = 320,429,016.23/18,261.84
  6. Step 6: Final answer
    x = 17,546.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.