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Finding the Fourth Proportional to 65,226.92, 90,013.50 and 36,938.12

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Solution

The fourth proportional to 65,226.92, 90,013.50 and 36,938.12 is: 50,974.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,226.92 : 90,013.50 = 36,938.12 : x
  2. Step 2: Convert to fraction form
    65,226.92/90,013.50 = 36,938.12/x
  3. Step 3: Cross multiply
    65,226.92x = 90,013.50 × 36,938.12
  4. Step 4: Simplify right side
    65,226.92x = 3,324,929,464.62
  5. Step 5: Solve for x
    x = 3,324,929,464.62/65,226.92
  6. Step 6: Final answer
    x = 50,974.80

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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.