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Finding the Fourth Proportional to 48,840.80, 73,203.77 and 20,743.31

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Solution

The fourth proportional to 48,840.80, 73,203.77 and 20,743.31 is: 31,090.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,840.80 : 73,203.77 = 20,743.31 : x
  2. Step 2: Convert to fraction form
    48,840.80/73,203.77 = 20,743.31/x
  3. Step 3: Cross multiply
    48,840.80x = 73,203.77 × 20,743.31
  4. Step 4: Simplify right side
    48,840.80x = 1,518,488,729.15
  5. Step 5: Solve for x
    x = 1,518,488,729.15/48,840.80
  6. Step 6: Final answer
    x = 31,090.58

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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.