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Finding the Fourth Proportional to 57,749.80, 86,559.90 and 32,801.80

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Solution

The fourth proportional to 57,749.80, 86,559.90 and 32,801.80 is: 49,165.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,749.80 : 86,559.90 = 32,801.80 : x
  2. Step 2: Convert to fraction form
    57,749.80/86,559.90 = 32,801.80/x
  3. Step 3: Cross multiply
    57,749.80x = 86,559.90 × 32,801.80
  4. Step 4: Simplify right side
    57,749.80x = 2,839,320,527.82
  5. Step 5: Solve for x
    x = 2,839,320,527.82/57,749.80
  6. Step 6: Final answer
    x = 49,165.89

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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.