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Finding the Fourth Proportional to 17,072.87, 25,620.20 and 8,303.00

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Solution

The fourth proportional to 17,072.87, 25,620.20 and 8,303.00 is: 12,459.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,072.87 : 25,620.20 = 8,303.00 : x
  2. Step 2: Convert to fraction form
    17,072.87/25,620.20 = 8,303.00/x
  3. Step 3: Cross multiply
    17,072.87x = 25,620.20 × 8,303.00
  4. Step 4: Simplify right side
    17,072.87x = 212,724,350.98
  5. Step 5: Solve for x
    x = 212,724,350.98/17,072.87
  6. Step 6: Final answer
    x = 12,459.79

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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.