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Finding the Fourth Proportional to 17,179.99, 25,770.52 and 8,172.14

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Solution

The fourth proportional to 17,179.99, 25,770.52 and 8,172.14 is: 12,258.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,179.99 : 25,770.52 = 8,172.14 : x
  2. Step 2: Convert to fraction form
    17,179.99/25,770.52 = 8,172.14/x
  3. Step 3: Cross multiply
    17,179.99x = 25,770.52 × 8,172.14
  4. Step 4: Simplify right side
    17,179.99x = 210,600,148.03
  5. Step 5: Solve for x
    x = 210,600,148.03/17,179.99
  6. Step 6: Final answer
    x = 12,258.46

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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.