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Finding the Fourth Proportional to 18,041.74, 27,061.99 and 8,174.12

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Solution

The fourth proportional to 18,041.74, 27,061.99 and 8,174.12 is: 12,260.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,041.74 : 27,061.99 = 8,174.12 : x
  2. Step 2: Convert to fraction form
    18,041.74/27,061.99 = 8,174.12/x
  3. Step 3: Cross multiply
    18,041.74x = 27,061.99 × 8,174.12
  4. Step 4: Simplify right side
    18,041.74x = 221,207,797.95
  5. Step 5: Solve for x
    x = 221,207,797.95/18,041.74
  6. Step 6: Final answer
    x = 12,260.89

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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.