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Finding the Fourth Proportional to 55,480.44, 83,241.09 and 39,810.54

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Solution

The fourth proportional to 55,480.44, 83,241.09 and 39,810.54 is: 59,730.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,480.44 : 83,241.09 = 39,810.54 : x
  2. Step 2: Convert to fraction form
    55,480.44/83,241.09 = 39,810.54/x
  3. Step 3: Cross multiply
    55,480.44x = 83,241.09 × 39,810.54
  4. Step 4: Simplify right side
    55,480.44x = 3,313,872,743.09
  5. Step 5: Solve for x
    x = 3,313,872,743.09/55,480.44
  6. Step 6: Final answer
    x = 59,730.47

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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.