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Finding the Fourth Proportional to 12,797.92, 17,661.36 and 8,598.88

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Solution

The fourth proportional to 12,797.92, 17,661.36 and 8,598.88 is: 11,866.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,797.92 : 17,661.36 = 8,598.88 : x
  2. Step 2: Convert to fraction form
    12,797.92/17,661.36 = 8,598.88/x
  3. Step 3: Cross multiply
    12,797.92x = 17,661.36 × 8,598.88
  4. Step 4: Simplify right side
    12,797.92x = 151,867,915.28
  5. Step 5: Solve for x
    x = 151,867,915.28/12,797.92
  6. Step 6: Final answer
    x = 11,866.61

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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.