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Finding the Fourth Proportional to 8,482.60, 12,724.44 and 2,936.48

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Solution

The fourth proportional to 8,482.60, 12,724.44 and 2,936.48 is: 4,404.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,482.60 : 12,724.44 = 2,936.48 : x
  2. Step 2: Convert to fraction form
    8,482.60/12,724.44 = 2,936.48/x
  3. Step 3: Cross multiply
    8,482.60x = 12,724.44 × 2,936.48
  4. Step 4: Simplify right side
    8,482.60x = 37,365,063.57
  5. Step 5: Solve for x
    x = 37,365,063.57/8,482.60
  6. Step 6: Final answer
    x = 4,404.91

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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.