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Finding the Fourth Proportional to 61,525.44, 84,911.04 and 39,168

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Solution

The fourth proportional to 61,525.44, 84,911.04 and 39,168 is: 54,055.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,525.44 : 84,911.04 = 39,168 : x
  2. Step 2: Convert to fraction form
    61,525.44/84,911.04 = 39,168/x
  3. Step 3: Cross multiply
    61,525.44x = 84,911.04 × 39,168
  4. Step 4: Simplify right side
    61,525.44x = 3,325,795,614.72
  5. Step 5: Solve for x
    x = 3,325,795,614.72/61,525.44
  6. Step 6: Final answer
    x = 54,055.62

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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.