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Finding the Fourth Proportional to 6,520.92, 8,996.52 and 4,284

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Solution

The fourth proportional to 6,520.92, 8,996.52 and 4,284 is: 5,910.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,520.92 : 8,996.52 = 4,284 : x
  2. Step 2: Convert to fraction form
    6,520.92/8,996.52 = 4,284/x
  3. Step 3: Cross multiply
    6,520.92x = 8,996.52 × 4,284
  4. Step 4: Simplify right side
    6,520.92x = 38,541,091.68
  5. Step 5: Solve for x
    x = 38,541,091.68/6,520.92
  6. Step 6: Final answer
    x = 5,910.38

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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.