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Finding the Fourth Proportional to 18,057.72, 27,020.90 and 14,908.44

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Solution

The fourth proportional to 18,057.72, 27,020.90 and 14,908.44 is: 22,308.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,057.72 : 27,020.90 = 14,908.44 : x
  2. Step 2: Convert to fraction form
    18,057.72/27,020.90 = 14,908.44/x
  3. Step 3: Cross multiply
    18,057.72x = 27,020.90 × 14,908.44
  4. Step 4: Simplify right side
    18,057.72x = 402,839,466.40
  5. Step 5: Solve for x
    x = 402,839,466.40/18,057.72
  6. Step 6: Final answer
    x = 22,308.43

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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.