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Finding the Fourth Proportional to 5,818.92, 8,724.08 and 1,867.90

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Solution

The fourth proportional to 5,818.92, 8,724.08 and 1,867.90 is: 2,800.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,818.92 : 8,724.08 = 1,867.90 : x
  2. Step 2: Convert to fraction form
    5,818.92/8,724.08 = 1,867.90/x
  3. Step 3: Cross multiply
    5,818.92x = 8,724.08 × 1,867.90
  4. Step 4: Simplify right side
    5,818.92x = 16,295,709.03
  5. Step 5: Solve for x
    x = 16,295,709.03/5,818.92
  6. Step 6: Final answer
    x = 2,800.47

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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.