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Finding the Fourth Proportional to 65,189.38, 89,940.28 and 36,504.75

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Solution

The fourth proportional to 65,189.38, 89,940.28 and 36,504.75 is: 50,364.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,189.38 : 89,940.28 = 36,504.75 : x
  2. Step 2: Convert to fraction form
    65,189.38/89,940.28 = 36,504.75/x
  3. Step 3: Cross multiply
    65,189.38x = 89,940.28 × 36,504.75
  4. Step 4: Simplify right side
    65,189.38x = 3,283,247,436.33
  5. Step 5: Solve for x
    x = 3,283,247,436.33/65,189.38
  6. Step 6: Final answer
    x = 50,364.76

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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.