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Finding the Fourth Proportional to 12,797.91, 17,661.41 and 7,133.24

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Solution

The fourth proportional to 12,797.91, 17,661.41 and 7,133.24 is: 9,844.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,797.91 : 17,661.41 = 7,133.24 : x
  2. Step 2: Convert to fraction form
    12,797.91/17,661.41 = 7,133.24/x
  3. Step 3: Cross multiply
    12,797.91x = 17,661.41 × 7,133.24
  4. Step 4: Simplify right side
    12,797.91x = 125,983,076.27
  5. Step 5: Solve for x
    x = 125,983,076.27/12,797.91
  6. Step 6: Final answer
    x = 9,844.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.