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Finding the Fourth Proportional to 65,855.97, 98,684.17 and 43,589.57

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Solution

The fourth proportional to 65,855.97, 98,684.17 and 43,589.57 is: 65,318.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,855.97 : 98,684.17 = 43,589.57 : x
  2. Step 2: Convert to fraction form
    65,855.97/98,684.17 = 43,589.57/x
  3. Step 3: Cross multiply
    65,855.97x = 98,684.17 × 43,589.57
  4. Step 4: Simplify right side
    65,855.97x = 4,301,600,318.16
  5. Step 5: Solve for x
    x = 4,301,600,318.16/65,855.97
  6. Step 6: Final answer
    x = 65,318.31

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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.