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Finding the Fourth Proportional to 20,260.54, 30,394.04 and 8,573.86

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Solution

The fourth proportional to 20,260.54, 30,394.04 and 8,573.86 is: 12,862.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,260.54 : 30,394.04 = 8,573.86 : x
  2. Step 2: Convert to fraction form
    20,260.54/30,394.04 = 8,573.86/x
  3. Step 3: Cross multiply
    20,260.54x = 30,394.04 × 8,573.86
  4. Step 4: Simplify right side
    20,260.54x = 260,594,243.79
  5. Step 5: Solve for x
    x = 260,594,243.79/20,260.54
  6. Step 6: Final answer
    x = 12,862.16

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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.