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Finding the Fourth Proportional to 17,213.72, 25,792.38 and 10,621.10

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Solution

The fourth proportional to 17,213.72, 25,792.38 and 10,621.10 is: 15,914.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,213.72 : 25,792.38 = 10,621.10 : x
  2. Step 2: Convert to fraction form
    17,213.72/25,792.38 = 10,621.10/x
  3. Step 3: Cross multiply
    17,213.72x = 25,792.38 × 10,621.10
  4. Step 4: Simplify right side
    17,213.72x = 273,943,447.22
  5. Step 5: Solve for x
    x = 273,943,447.22/17,213.72
  6. Step 6: Final answer
    x = 15,914.25

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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.