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Finding the Fourth Proportional to 61,954.36, 92,855.40 and 28,629.34

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Solution

The fourth proportional to 61,954.36, 92,855.40 and 28,629.34 is: 42,908.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,954.36 : 92,855.40 = 28,629.34 : x
  2. Step 2: Convert to fraction form
    61,954.36/92,855.40 = 28,629.34/x
  3. Step 3: Cross multiply
    61,954.36x = 92,855.40 × 28,629.34
  4. Step 4: Simplify right side
    61,954.36x = 2,658,388,817.44
  5. Step 5: Solve for x
    x = 2,658,388,817.44/61,954.36
  6. Step 6: Final answer
    x = 42,908.83

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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.