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Finding the Fourth Proportional to 18,722.68, 25,837.28 and 10,339.16

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Solution

The fourth proportional to 18,722.68, 25,837.28 and 10,339.16 is: 14,268.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,722.68 : 25,837.28 = 10,339.16 : x
  2. Step 2: Convert to fraction form
    18,722.68/25,837.28 = 10,339.16/x
  3. Step 3: Cross multiply
    18,722.68x = 25,837.28 × 10,339.16
  4. Step 4: Simplify right side
    18,722.68x = 267,135,771.88
  5. Step 5: Solve for x
    x = 267,135,771.88/18,722.68
  6. Step 6: Final answer
    x = 14,268.03

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.