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Finding the Fourth Proportional to 50,998.80, 76,449.60 and 39,747.90

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Solution

The fourth proportional to 50,998.80, 76,449.60 and 39,747.90 is: 59,583.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,998.80 : 76,449.60 = 39,747.90 : x
  2. Step 2: Convert to fraction form
    50,998.80/76,449.60 = 39,747.90/x
  3. Step 3: Cross multiply
    50,998.80x = 76,449.60 × 39,747.90
  4. Step 4: Simplify right side
    50,998.80x = 3,038,711,055.84
  5. Step 5: Solve for x
    x = 3,038,711,055.84/50,998.80
  6. Step 6: Final answer
    x = 59,583.97

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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.