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Finding the Fourth Proportional to 18,028.09, 27,041.66 and 8,160.17

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Solution

The fourth proportional to 18,028.09, 27,041.66 and 8,160.17 is: 12,240.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,028.09 : 27,041.66 = 8,160.17 : x
  2. Step 2: Convert to fraction form
    18,028.09/27,041.66 = 8,160.17/x
  3. Step 3: Cross multiply
    18,028.09x = 27,041.66 × 8,160.17
  4. Step 4: Simplify right side
    18,028.09x = 220,664,501.88
  5. Step 5: Solve for x
    x = 220,664,501.88/18,028.09
  6. Step 6: Final answer
    x = 12,240.04

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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.