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Finding the Fourth Proportional to 15,791.27, 23,700.78 and 6,431.27

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Solution

The fourth proportional to 15,791.27, 23,700.78 and 6,431.27 is: 9,652.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,791.27 : 23,700.78 = 6,431.27 : x
  2. Step 2: Convert to fraction form
    15,791.27/23,700.78 = 6,431.27/x
  3. Step 3: Cross multiply
    15,791.27x = 23,700.78 × 6,431.27
  4. Step 4: Simplify right side
    15,791.27x = 152,425,996.89
  5. Step 5: Solve for x
    x = 152,425,996.89/15,791.27
  6. Step 6: Final answer
    x = 9,652.55

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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.