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Finding the Fourth Proportional to 18,470.52, 25,489.32 and 10,086.96

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Solution

The fourth proportional to 18,470.52, 25,489.32 and 10,086.96 is: 13,920.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,470.52 : 25,489.32 = 10,086.96 : x
  2. Step 2: Convert to fraction form
    18,470.52/25,489.32 = 10,086.96/x
  3. Step 3: Cross multiply
    18,470.52x = 25,489.32 × 10,086.96
  4. Step 4: Simplify right side
    18,470.52x = 257,109,751.27
  5. Step 5: Solve for x
    x = 257,109,751.27/18,470.52
  6. Step 6: Final answer
    x = 13,920.01

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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.