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Finding the Fourth Proportional to 23,891.88, 35,636.24 and 20,747.16

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Solution

The fourth proportional to 23,891.88, 35,636.24 and 20,747.16 is: 30,945.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,891.88 : 35,636.24 = 20,747.16 : x
  2. Step 2: Convert to fraction form
    23,891.88/35,636.24 = 20,747.16/x
  3. Step 3: Cross multiply
    23,891.88x = 35,636.24 × 20,747.16
  4. Step 4: Simplify right side
    23,891.88x = 739,350,773.08
  5. Step 5: Solve for x
    x = 739,350,773.08/23,891.88
  6. Step 6: Final answer
    x = 30,945.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.