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Finding the Fourth Proportional to 83,832.94, 125,749 and 20,652.94

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Solution

The fourth proportional to 83,832.94, 125,749 and 20,652.94 is: 30,979.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,832.94 : 125,749 = 20,652.94 : x
  2. Step 2: Convert to fraction form
    83,832.94/125,749 = 20,652.94/x
  3. Step 3: Cross multiply
    83,832.94x = 125,749 × 20,652.94
  4. Step 4: Simplify right side
    83,832.94x = 2,597,086,552.06
  5. Step 5: Solve for x
    x = 2,597,086,552.06/83,832.94
  6. Step 6: Final answer
    x = 30,979.31

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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.