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Finding the Fourth Proportional to 16,287.28, 22,476.44 and 8,835.28

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Solution

The fourth proportional to 16,287.28, 22,476.44 and 8,835.28 is: 12,192.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,287.28 : 22,476.44 = 8,835.28 : x
  2. Step 2: Convert to fraction form
    16,287.28/22,476.44 = 8,835.28/x
  3. Step 3: Cross multiply
    16,287.28x = 22,476.44 × 8,835.28
  4. Step 4: Simplify right side
    16,287.28x = 198,585,640.80
  5. Step 5: Solve for x
    x = 198,585,640.80/16,287.28
  6. Step 6: Final answer
    x = 12,192.68

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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.