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Finding the Fourth Proportional to 43,773.52, 65,680.79 and 21,574.79

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Solution

The fourth proportional to 43,773.52, 65,680.79 and 21,574.79 is: 32,372.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,773.52 : 65,680.79 = 21,574.79 : x
  2. Step 2: Convert to fraction form
    43,773.52/65,680.79 = 21,574.79/x
  3. Step 3: Cross multiply
    43,773.52x = 65,680.79 × 21,574.79
  4. Step 4: Simplify right side
    43,773.52x = 1,417,049,251.28
  5. Step 5: Solve for x
    x = 1,417,049,251.28/43,773.52
  6. Step 6: Final answer
    x = 32,372.29

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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.