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Finding the Fourth Proportional to 43,969.28, 65,909.77 and 21,798.77

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Solution

The fourth proportional to 43,969.28, 65,909.77 and 21,798.77 is: 32,676.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,969.28 : 65,909.77 = 21,798.77 : x
  2. Step 2: Convert to fraction form
    43,969.28/65,909.77 = 21,798.77/x
  3. Step 3: Cross multiply
    43,969.28x = 65,909.77 × 21,798.77
  4. Step 4: Simplify right side
    43,969.28x = 1,436,751,532.94
  5. Step 5: Solve for x
    x = 1,436,751,532.94/43,969.28
  6. Step 6: Final answer
    x = 32,676.26

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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.