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Finding the Fourth Proportional to 49,804.42, 68,797.40 and 39,802.96

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Solution

The fourth proportional to 49,804.42, 68,797.40 and 39,802.96 is: 54,981.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,804.42 : 68,797.40 = 39,802.96 : x
  2. Step 2: Convert to fraction form
    49,804.42/68,797.40 = 39,802.96/x
  3. Step 3: Cross multiply
    49,804.42x = 68,797.40 × 39,802.96
  4. Step 4: Simplify right side
    49,804.42x = 2,738,339,915.82
  5. Step 5: Solve for x
    x = 2,738,339,915.82/49,804.42
  6. Step 6: Final answer
    x = 54,981.87

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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.