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Finding the Fourth Proportional to 16,951.84, 25,405.68 and 8,168.80

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Solution

The fourth proportional to 16,951.84, 25,405.68 and 8,168.80 is: 12,242.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,951.84 : 25,405.68 = 8,168.80 : x
  2. Step 2: Convert to fraction form
    16,951.84/25,405.68 = 8,168.80/x
  3. Step 3: Cross multiply
    16,951.84x = 25,405.68 × 8,168.80
  4. Step 4: Simplify right side
    16,951.84x = 207,533,918.78
  5. Step 5: Solve for x
    x = 207,533,918.78/16,951.84
  6. Step 6: Final answer
    x = 12,242.56

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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.