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Finding the Fourth Proportional to 48,602.49, 67,069.78 and 29,739.61

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Solution

The fourth proportional to 48,602.49, 67,069.78 and 29,739.61 is: 41,039.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,602.49 : 67,069.78 = 29,739.61 : x
  2. Step 2: Convert to fraction form
    48,602.49/67,069.78 = 29,739.61/x
  3. Step 3: Cross multiply
    48,602.49x = 67,069.78 × 29,739.61
  4. Step 4: Simplify right side
    48,602.49x = 1,994,629,099.99
  5. Step 5: Solve for x
    x = 1,994,629,099.99/48,602.49
  6. Step 6: Final answer
    x = 41,039.65

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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.