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Finding the Fourth Proportional to 51,993.91, 71,686.50 and 43,392.43

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Solution

The fourth proportional to 51,993.91, 71,686.50 and 43,392.43 is: 59,827.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,993.91 : 71,686.50 = 43,392.43 : x
  2. Step 2: Convert to fraction form
    51,993.91/71,686.50 = 43,392.43/x
  3. Step 3: Cross multiply
    51,993.91x = 71,686.50 × 43,392.43
  4. Step 4: Simplify right side
    51,993.91x = 3,110,651,433.20
  5. Step 5: Solve for x
    x = 3,110,651,433.20/51,993.91
  6. Step 6: Final answer
    x = 59,827.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.