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Finding the Fourth Proportional to 53,997.71, 80,924.81 and 28,691.96

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Solution

The fourth proportional to 53,997.71, 80,924.81 and 28,691.96 is: 42,999.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,997.71 : 80,924.81 = 28,691.96 : x
  2. Step 2: Convert to fraction form
    53,997.71/80,924.81 = 28,691.96/x
  3. Step 3: Cross multiply
    53,997.71x = 80,924.81 × 28,691.96
  4. Step 4: Simplify right side
    53,997.71x = 2,321,890,863.44
  5. Step 5: Solve for x
    x = 2,321,890,863.44/53,997.71
  6. Step 6: Final answer
    x = 42,999.81

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1.5x scale

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.