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Finding the Fourth Proportional to 48,751.88, 67,228.38 and 39,770.60

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Solution

The fourth proportional to 48,751.88, 67,228.38 and 39,770.60 is: 54,843.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,751.88 : 67,228.38 = 39,770.60 : x
  2. Step 2: Convert to fraction form
    48,751.88/67,228.38 = 39,770.60/x
  3. Step 3: Cross multiply
    48,751.88x = 67,228.38 × 39,770.60
  4. Step 4: Simplify right side
    48,751.88x = 2,673,712,673.49
  5. Step 5: Solve for x
    x = 2,673,712,673.49/48,751.88
  6. Step 6: Final answer
    x = 54,843.28

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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.