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Finding the Fourth Proportional to 50,993.80, 76,461 and 19,792.60

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Solution

The fourth proportional to 50,993.80, 76,461 and 19,792.60 is: 29,677.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,993.80 : 76,461 = 19,792.60 : x
  2. Step 2: Convert to fraction form
    50,993.80/76,461 = 19,792.60/x
  3. Step 3: Cross multiply
    50,993.80x = 76,461 × 19,792.60
  4. Step 4: Simplify right side
    50,993.80x = 1,513,361,988.60
  5. Step 5: Solve for x
    x = 1,513,361,988.60/50,993.80
  6. Step 6: Final answer
    x = 29,677.37

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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.