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Finding the Fourth Proportional to 65,893.41, 90,933.08 and 35,679.11

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Solution

The fourth proportional to 65,893.41, 90,933.08 and 35,679.11 is: 49,237.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,893.41 : 90,933.08 = 35,679.11 : x
  2. Step 2: Convert to fraction form
    65,893.41/90,933.08 = 35,679.11/x
  3. Step 3: Cross multiply
    65,893.41x = 90,933.08 × 35,679.11
  4. Step 4: Simplify right side
    65,893.41x = 3,244,410,730.90
  5. Step 5: Solve for x
    x = 3,244,410,730.90/65,893.41
  6. Step 6: Final answer
    x = 49,237.26

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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.