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Finding the Fourth Proportional to 17,071.30, 25,589.92 and 8,170.21

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Solution

The fourth proportional to 17,071.30, 25,589.92 and 8,170.21 is: 12,247.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,071.30 : 25,589.92 = 8,170.21 : x
  2. Step 2: Convert to fraction form
    17,071.30/25,589.92 = 8,170.21/x
  3. Step 3: Cross multiply
    17,071.30x = 25,589.92 × 8,170.21
  4. Step 4: Simplify right side
    17,071.30x = 209,075,020.28
  5. Step 5: Solve for x
    x = 209,075,020.28/17,071.30
  6. Step 6: Final answer
    x = 12,247.16

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.