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Finding the Fourth Proportional to 43,874.56, 65,813.64 and 36,530.80

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Solution

The fourth proportional to 43,874.56, 65,813.64 and 36,530.80 is: 54,797.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,874.56 : 65,813.64 = 36,530.80 : x
  2. Step 2: Convert to fraction form
    43,874.56/65,813.64 = 36,530.80/x
  3. Step 3: Cross multiply
    43,874.56x = 65,813.64 × 36,530.80
  4. Step 4: Simplify right side
    43,874.56x = 2,404,224,920.11
  5. Step 5: Solve for x
    x = 2,404,224,920.11/43,874.56
  6. Step 6: Final answer
    x = 54,797.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.