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Finding the Fourth Proportional to 65,016.92, 89,722.28 and 36,336.98

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Solution

The fourth proportional to 65,016.92, 89,722.28 and 36,336.98 is: 50,144.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,016.92 : 89,722.28 = 36,336.98 : x
  2. Step 2: Convert to fraction form
    65,016.92/89,722.28 = 36,336.98/x
  3. Step 3: Cross multiply
    65,016.92x = 89,722.28 × 36,336.98
  4. Step 4: Simplify right side
    65,016.92x = 3,260,236,336.15
  5. Step 5: Solve for x
    x = 3,260,236,336.15/65,016.92
  6. Step 6: Final answer
    x = 50,144.43

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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.