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Finding the Fourth Proportional to 17,188,607.20, 25,751,806.80 and 8,193,330.40

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Solution

The fourth proportional to 17,188,607.20, 25,751,806.80 and 8,193,330.40 is: 12,275,169.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,188,607.20 : 25,751,806.80 = 8,193,330.40 : x
  2. Step 2: Convert to fraction form
    17,188,607.20/25,751,806.80 = 8,193,330.40/x
  3. Step 3: Cross multiply
    17,188,607.20x = 25,751,806.80 × 8,193,330.40
  4. Step 4: Simplify right side
    17,188,607.20x = 210,993,061,509,366.75
  5. Step 5: Solve for x
    x = 210,993,061,509,366.75/17,188,607.20
  6. Step 6: Final answer
    x = 12,275,169.19

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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.