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Finding the Fourth Proportional to 15,791.84, 23,682.69 and 8,392.08

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Solution

The fourth proportional to 15,791.84, 23,682.69 and 8,392.08 is: 12,585.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,791.84 : 23,682.69 = 8,392.08 : x
  2. Step 2: Convert to fraction form
    15,791.84/23,682.69 = 8,392.08/x
  3. Step 3: Cross multiply
    15,791.84x = 23,682.69 × 8,392.08
  4. Step 4: Simplify right side
    15,791.84x = 198,747,029.10
  5. Step 5: Solve for x
    x = 198,747,029.10/15,791.84
  6. Step 6: Final answer
    x = 12,585.43

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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.