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Finding the Fourth Proportional to 12,459.03, 18,692.16 and 3,694.16

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Solution

The fourth proportional to 12,459.03, 18,692.16 and 3,694.16 is: 5,542.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,459.03 : 18,692.16 = 3,694.16 : x
  2. Step 2: Convert to fraction form
    12,459.03/18,692.16 = 3,694.16/x
  3. Step 3: Cross multiply
    12,459.03x = 18,692.16 × 3,694.16
  4. Step 4: Simplify right side
    12,459.03x = 69,051,717.85
  5. Step 5: Solve for x
    x = 69,051,717.85/12,459.03
  6. Step 6: Final answer
    x = 5,542.30

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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.