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Finding the Fourth Proportional to 68,679.57, 94,783.83 and 38,464.41

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Solution

The fourth proportional to 68,679.57, 94,783.83 and 38,464.41 is: 53,084.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,679.57 : 94,783.83 = 38,464.41 : x
  2. Step 2: Convert to fraction form
    68,679.57/94,783.83 = 38,464.41/x
  3. Step 3: Cross multiply
    68,679.57x = 94,783.83 × 38,464.41
  4. Step 4: Simplify right side
    68,679.57x = 3,645,804,098.49
  5. Step 5: Solve for x
    x = 3,645,804,098.49/68,679.57
  6. Step 6: Final answer
    x = 53,084.26

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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.