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Finding the Fourth Proportional to 53,400.64, 80,098.17 and 15,961.03

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Solution

The fourth proportional to 53,400.64, 80,098.17 and 15,961.03 is: 23,940.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,400.64 : 80,098.17 = 15,961.03 : x
  2. Step 2: Convert to fraction form
    53,400.64/80,098.17 = 15,961.03/x
  3. Step 3: Cross multiply
    53,400.64x = 80,098.17 × 15,961.03
  4. Step 4: Simplify right side
    53,400.64x = 1,278,449,294.32
  5. Step 5: Solve for x
    x = 1,278,449,294.32/53,400.64
  6. Step 6: Final answer
    x = 23,940.71

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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.