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Finding the Fourth Proportional to 51,859.36, 71,662.80 and 42,424.48

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Solution

The fourth proportional to 51,859.36, 71,662.80 and 42,424.48 is: 58,625.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,859.36 : 71,662.80 = 42,424.48 : x
  2. Step 2: Convert to fraction form
    51,859.36/71,662.80 = 42,424.48/x
  3. Step 3: Cross multiply
    51,859.36x = 71,662.80 × 42,424.48
  4. Step 4: Simplify right side
    51,859.36x = 3,040,257,025.34
  5. Step 5: Solve for x
    x = 3,040,257,025.34/51,859.36
  6. Step 6: Final answer
    x = 58,625.04

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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.