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Finding the Fourth Proportional to 14,694.20, 21,996.30 and 8,100.20

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Solution

The fourth proportional to 14,694.20, 21,996.30 and 8,100.20 is: 12,125.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,694.20 : 21,996.30 = 8,100.20 : x
  2. Step 2: Convert to fraction form
    14,694.20/21,996.30 = 8,100.20/x
  3. Step 3: Cross multiply
    14,694.20x = 21,996.30 × 8,100.20
  4. Step 4: Simplify right side
    14,694.20x = 178,174,429.26
  5. Step 5: Solve for x
    x = 178,174,429.26/14,694.20
  6. Step 6: Final answer
    x = 12,125.49

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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.