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Finding the Fourth Proportional to 6,337.81, 8,746.20 and 3,543.31

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Solution

The fourth proportional to 6,337.81, 8,746.20 and 3,543.31 is: 4,889.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,337.81 : 8,746.20 = 3,543.31 : x
  2. Step 2: Convert to fraction form
    6,337.81/8,746.20 = 3,543.31/x
  3. Step 3: Cross multiply
    6,337.81x = 8,746.20 × 3,543.31
  4. Step 4: Simplify right side
    6,337.81x = 30,990,497.92
  5. Step 5: Solve for x
    x = 30,990,497.92/6,337.81
  6. Step 6: Final answer
    x = 4,889.78

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Why These Related Problems?

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