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Finding the Fourth Proportional to 53,710.54, 80,489.43 and 39,559.30

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Solution

The fourth proportional to 53,710.54, 80,489.43 and 39,559.30 is: 59,282.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,710.54 : 80,489.43 = 39,559.30 : x
  2. Step 2: Convert to fraction form
    53,710.54/80,489.43 = 39,559.30/x
  3. Step 3: Cross multiply
    53,710.54x = 80,489.43 × 39,559.30
  4. Step 4: Simplify right side
    53,710.54x = 3,184,105,306.98
  5. Step 5: Solve for x
    x = 3,184,105,306.98/53,710.54
  6. Step 6: Final answer
    x = 59,282.69

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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.