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Finding the Fourth Proportional to 62,471.98, 86,212.58 and 34,178.28

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Solution

The fourth proportional to 62,471.98, 86,212.58 and 34,178.28 is: 47,166.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,471.98 : 86,212.58 = 34,178.28 : x
  2. Step 2: Convert to fraction form
    62,471.98/86,212.58 = 34,178.28/x
  3. Step 3: Cross multiply
    62,471.98x = 86,212.58 × 34,178.28
  4. Step 4: Simplify right side
    62,471.98x = 2,946,597,698.76
  5. Step 5: Solve for x
    x = 2,946,597,698.76/62,471.98
  6. Step 6: Final answer
    x = 47,166.71

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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.