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Finding the Fourth Proportional to 65,163.52, 89,918.08 and 36,484.80

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Solution

The fourth proportional to 65,163.52, 89,918.08 and 36,484.80 is: 50,344.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,163.52 : 89,918.08 = 36,484.80 : x
  2. Step 2: Convert to fraction form
    65,163.52/89,918.08 = 36,484.80/x
  3. Step 3: Cross multiply
    65,163.52x = 89,918.08 × 36,484.80
  4. Step 4: Simplify right side
    65,163.52x = 3,280,643,165.18
  5. Step 5: Solve for x
    x = 3,280,643,165.18/65,163.52
  6. Step 6: Final answer
    x = 50,344.78

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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.