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Finding the Fourth Proportional to 17,131.73, 25,677.14 and 8,815.73

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Solution

The fourth proportional to 17,131.73, 25,677.14 and 8,815.73 is: 13,213.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,131.73 : 25,677.14 = 8,815.73 : x
  2. Step 2: Convert to fraction form
    17,131.73/25,677.14 = 8,815.73/x
  3. Step 3: Cross multiply
    17,131.73x = 25,677.14 × 8,815.73
  4. Step 4: Simplify right side
    17,131.73x = 226,362,560.95
  5. Step 5: Solve for x
    x = 226,362,560.95/17,131.73
  6. Step 6: Final answer
    x = 13,213.06

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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.