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Finding the Fourth Proportional to 12,926.88, 19,393.47 and 3,692.88

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Solution

The fourth proportional to 12,926.88, 19,393.47 and 3,692.88 is: 5,540.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,926.88 : 19,393.47 = 3,692.88 : x
  2. Step 2: Convert to fraction form
    12,926.88/19,393.47 = 3,692.88/x
  3. Step 3: Cross multiply
    12,926.88x = 19,393.47 × 3,692.88
  4. Step 4: Simplify right side
    12,926.88x = 71,617,757.49
  5. Step 5: Solve for x
    x = 71,617,757.49/12,926.88
  6. Step 6: Final answer
    x = 5,540.22

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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.