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Finding the Fourth Proportional to 53,769.60, 80,687.52 and 34,020.96

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Solution

The fourth proportional to 53,769.60, 80,687.52 and 34,020.96 is: 51,052.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,769.60 : 80,687.52 = 34,020.96 : x
  2. Step 2: Convert to fraction form
    53,769.60/80,687.52 = 34,020.96/x
  3. Step 3: Cross multiply
    53,769.60x = 80,687.52 × 34,020.96
  4. Step 4: Simplify right side
    53,769.60x = 2,745,066,890.42
  5. Step 5: Solve for x
    x = 2,745,066,890.42/53,769.60
  6. Step 6: Final answer
    x = 51,052.40

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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.