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Finding the Fourth Proportional to 8,293.33, 12,446.20 and 3,913.86

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Solution

The fourth proportional to 8,293.33, 12,446.20 and 3,913.86 is: 5,873.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,293.33 : 12,446.20 = 3,913.86 : x
  2. Step 2: Convert to fraction form
    8,293.33/12,446.20 = 3,913.86/x
  3. Step 3: Cross multiply
    8,293.33x = 12,446.20 × 3,913.86
  4. Step 4: Simplify right side
    8,293.33x = 48,712,684.33
  5. Step 5: Solve for x
    x = 48,712,684.33/8,293.33
  6. Step 6: Final answer
    x = 5,873.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.