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Finding the Fourth Proportional to 18,314.34, 25,274.28 and 10,357.75

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Solution

The fourth proportional to 18,314.34, 25,274.28 and 10,357.75 is: 14,293.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,314.34 : 25,274.28 = 10,357.75 : x
  2. Step 2: Convert to fraction form
    18,314.34/25,274.28 = 10,357.75/x
  3. Step 3: Cross multiply
    18,314.34x = 25,274.28 × 10,357.75
  4. Step 4: Simplify right side
    18,314.34x = 261,784,673.67
  5. Step 5: Solve for x
    x = 261,784,673.67/18,314.34
  6. Step 6: Final answer
    x = 14,293.97

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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.