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Finding the Fourth Proportional to 43,753.64, 65,636.90 and 14,161.64

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Solution

The fourth proportional to 43,753.64, 65,636.90 and 14,161.64 is: 21,244.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,753.64 : 65,636.90 = 14,161.64 : x
  2. Step 2: Convert to fraction form
    43,753.64/65,636.90 = 14,161.64/x
  3. Step 3: Cross multiply
    43,753.64x = 65,636.90 × 14,161.64
  4. Step 4: Simplify right side
    43,753.64x = 929,526,148.52
  5. Step 5: Solve for x
    x = 929,526,148.52/43,753.64
  6. Step 6: Final answer
    x = 21,244.54

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1.5x scale

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.