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Finding the Fourth Proportional to 65,197.49, 89,951.51 and 36,512.87

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Solution

The fourth proportional to 65,197.49, 89,951.51 and 36,512.87 is: 50,375.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,197.49 : 89,951.51 = 36,512.87 : x
  2. Step 2: Convert to fraction form
    65,197.49/89,951.51 = 36,512.87/x
  3. Step 3: Cross multiply
    65,197.49x = 89,951.51 × 36,512.87
  4. Step 4: Simplify right side
    65,197.49x = 3,284,387,608.37
  5. Step 5: Solve for x
    x = 3,284,387,608.37/65,197.49
  6. Step 6: Final answer
    x = 50,375.98

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1.5x scale

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.