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Finding the Fourth Proportional to 43,884.88, 65,489.86 and 39,219.28

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Solution

The fourth proportional to 43,884.88, 65,489.86 and 39,219.28 is: 58,527.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,884.88 : 65,489.86 = 39,219.28 : x
  2. Step 2: Convert to fraction form
    43,884.88/65,489.86 = 39,219.28/x
  3. Step 3: Cross multiply
    43,884.88x = 65,489.86 × 39,219.28
  4. Step 4: Simplify right side
    43,884.88x = 2,568,465,156.50
  5. Step 5: Solve for x
    x = 2,568,465,156.50/43,884.88
  6. Step 6: Final answer
    x = 58,527.34

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.