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Finding the Fourth Proportional to 68,661.39, 102,992.80 and 33,114.48

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Solution

The fourth proportional to 68,661.39, 102,992.80 and 33,114.48 is: 49,672.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,661.39 : 102,992.80 = 33,114.48 : x
  2. Step 2: Convert to fraction form
    68,661.39/102,992.80 = 33,114.48/x
  3. Step 3: Cross multiply
    68,661.39x = 102,992.80 × 33,114.48
  4. Step 4: Simplify right side
    68,661.39x = 3,410,553,015.74
  5. Step 5: Solve for x
    x = 3,410,553,015.74/68,661.39
  6. Step 6: Final answer
    x = 49,672.06

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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.