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Finding the Fourth Proportional to 12,008.20, 17,996.10 and 8,048.20

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Solution

The fourth proportional to 12,008.20, 17,996.10 and 8,048.20 is: 12,061.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,008.20 : 17,996.10 = 8,048.20 : x
  2. Step 2: Convert to fraction form
    12,008.20/17,996.10 = 8,048.20/x
  3. Step 3: Cross multiply
    12,008.20x = 17,996.10 × 8,048.20
  4. Step 4: Simplify right side
    12,008.20x = 144,836,212.02
  5. Step 5: Solve for x
    x = 144,836,212.02/12,008.20
  6. Step 6: Final answer
    x = 12,061.44

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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.