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Finding the Fourth Proportional to 12,651.01, 18,973.19 and 3,763.95

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Solution

The fourth proportional to 12,651.01, 18,973.19 and 3,763.95 is: 5,644.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,651.01 : 18,973.19 = 3,763.95 : x
  2. Step 2: Convert to fraction form
    12,651.01/18,973.19 = 3,763.95/x
  3. Step 3: Cross multiply
    12,651.01x = 18,973.19 × 3,763.95
  4. Step 4: Simplify right side
    12,651.01x = 71,414,138.50
  5. Step 5: Solve for x
    x = 71,414,138.50/12,651.01
  6. Step 6: Final answer
    x = 5,644.94

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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.