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Finding the Fourth Proportional to 65,146.68, 89,906.76 and 36,469.08

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Solution

The fourth proportional to 65,146.68, 89,906.76 and 36,469.08 is: 50,329.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,146.68 : 89,906.76 = 36,469.08 : x
  2. Step 2: Convert to fraction form
    65,146.68/89,906.76 = 36,469.08/x
  3. Step 3: Cross multiply
    65,146.68x = 89,906.76 × 36,469.08
  4. Step 4: Simplify right side
    65,146.68x = 3,278,816,822.98
  5. Step 5: Solve for x
    x = 3,278,816,822.98/65,146.68
  6. Step 6: Final answer
    x = 50,329.76

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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.