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Finding the Fourth Proportional to 48,628.40, 72,942.60 and 41,338.40

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Solution

The fourth proportional to 48,628.40, 72,942.60 and 41,338.40 is: 62,007.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,628.40 : 72,942.60 = 41,338.40 : x
  2. Step 2: Convert to fraction form
    48,628.40/72,942.60 = 41,338.40/x
  3. Step 3: Cross multiply
    48,628.40x = 72,942.60 × 41,338.40
  4. Step 4: Simplify right side
    48,628.40x = 3,015,330,375.84
  5. Step 5: Solve for x
    x = 3,015,330,375.84/48,628.40
  6. Step 6: Final answer
    x = 62,007.60

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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.