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Finding the Fourth Proportional to 27,161.95, 40,732.93 and 9,388.12

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Solution

The fourth proportional to 27,161.95, 40,732.93 and 9,388.12 is: 14,078.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,161.95 : 40,732.93 = 9,388.12 : x
  2. Step 2: Convert to fraction form
    27,161.95/40,732.93 = 9,388.12/x
  3. Step 3: Cross multiply
    27,161.95x = 40,732.93 × 9,388.12
  4. Step 4: Simplify right side
    27,161.95x = 382,405,634.79
  5. Step 5: Solve for x
    x = 382,405,634.79/27,161.95
  6. Step 6: Final answer
    x = 14,078.73

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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.