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Finding the Fourth Proportional to 5,290.92, 7,936.92 and 5,269.32

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Solution

The fourth proportional to 5,290.92, 7,936.92 and 5,269.32 is: 7,904.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,290.92 : 7,936.92 = 5,269.32 : x
  2. Step 2: Convert to fraction form
    5,290.92/7,936.92 = 5,269.32/x
  3. Step 3: Cross multiply
    5,290.92x = 7,936.92 × 5,269.32
  4. Step 4: Simplify right side
    5,290.92x = 41,822,171.29
  5. Step 5: Solve for x
    x = 41,822,171.29/5,290.92
  6. Step 6: Final answer
    x = 7,904.52

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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.