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Finding the Fourth Proportional to 17,197.68, 25,795.04 and 12,179.30

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Solution

The fourth proportional to 17,197.68, 25,795.04 and 12,179.30 is: 18,267.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,197.68 : 25,795.04 = 12,179.30 : x
  2. Step 2: Convert to fraction form
    17,197.68/25,795.04 = 12,179.30/x
  3. Step 3: Cross multiply
    17,197.68x = 25,795.04 × 12,179.30
  4. Step 4: Simplify right side
    17,197.68x = 314,165,530.67
  5. Step 5: Solve for x
    x = 314,165,530.67/17,197.68
  6. Step 6: Final answer
    x = 18,267.90

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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.