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Finding the Fourth Proportional to 50,839.80, 76,292.64 and 38,388.48

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Solution

The fourth proportional to 50,839.80, 76,292.64 and 38,388.48 is: 57,607.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,839.80 : 76,292.64 = 38,388.48 : x
  2. Step 2: Convert to fraction form
    50,839.80/76,292.64 = 38,388.48/x
  3. Step 3: Cross multiply
    50,839.80x = 76,292.64 × 38,388.48
  4. Step 4: Simplify right side
    50,839.80x = 2,928,758,484.79
  5. Step 5: Solve for x
    x = 2,928,758,484.79/50,839.80
  6. Step 6: Final answer
    x = 57,607.59

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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.