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Finding the Fourth Proportional to 35,481.52, 48,973.92 and 20,958.44

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Solution

The fourth proportional to 35,481.52, 48,973.92 and 20,958.44 is: 28,928.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,481.52 : 48,973.92 = 20,958.44 : x
  2. Step 2: Convert to fraction form
    35,481.52/48,973.92 = 20,958.44/x
  3. Step 3: Cross multiply
    35,481.52x = 48,973.92 × 20,958.44
  4. Step 4: Simplify right side
    35,481.52x = 1,026,416,963.88
  5. Step 5: Solve for x
    x = 1,026,416,963.88/35,481.52
  6. Step 6: Final answer
    x = 28,928.21

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1.5x scale

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.