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Finding the Fourth Proportional to 27,079.50, 40,623.13 and 8,361.14

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Solution

The fourth proportional to 27,079.50, 40,623.13 and 8,361.14 is: 12,542.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,079.50 : 40,623.13 = 8,361.14 : x
  2. Step 2: Convert to fraction form
    27,079.50/40,623.13 = 8,361.14/x
  3. Step 3: Cross multiply
    27,079.50x = 40,623.13 × 8,361.14
  4. Step 4: Simplify right side
    27,079.50x = 339,655,553.39
  5. Step 5: Solve for x
    x = 339,655,553.39/27,079.50
  6. Step 6: Final answer
    x = 12,542.90

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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.