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Finding the Fourth Proportional to 12,797.41, 17,660.72 and 7,132.74

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Solution

The fourth proportional to 12,797.41, 17,660.72 and 7,132.74 is: 9,843.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,797.41 : 17,660.72 = 7,132.74 : x
  2. Step 2: Convert to fraction form
    12,797.41/17,660.72 = 7,132.74/x
  3. Step 3: Cross multiply
    12,797.41x = 17,660.72 × 7,132.74
  4. Step 4: Simplify right side
    12,797.41x = 125,969,288.31
  5. Step 5: Solve for x
    x = 125,969,288.31/12,797.41
  6. Step 6: Final answer
    x = 9,843.34

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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.