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Finding the Fourth Proportional to 24,620.43, 36,936.48 and 7,980.47

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Solution

The fourth proportional to 24,620.43, 36,936.48 and 7,980.47 is: 11,972.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,620.43 : 36,936.48 = 7,980.47 : x
  2. Step 2: Convert to fraction form
    24,620.43/36,936.48 = 7,980.47/x
  3. Step 3: Cross multiply
    24,620.43x = 36,936.48 × 7,980.47
  4. Step 4: Simplify right side
    24,620.43x = 294,770,639.62
  5. Step 5: Solve for x
    x = 294,770,639.62/24,620.43
  6. Step 6: Final answer
    x = 11,972.60

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1.5x scale

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.