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Finding the Fourth Proportional to 18,362.70, 27,543.06 and 10,768.21

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Solution

The fourth proportional to 18,362.70, 27,543.06 and 10,768.21 is: 16,151.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,362.70 : 27,543.06 = 10,768.21 : x
  2. Step 2: Convert to fraction form
    18,362.70/27,543.06 = 10,768.21/x
  3. Step 3: Cross multiply
    18,362.70x = 27,543.06 × 10,768.21
  4. Step 4: Simplify right side
    18,362.70x = 296,589,385.26
  5. Step 5: Solve for x
    x = 296,589,385.26/18,362.70
  6. Step 6: Final answer
    x = 16,151.73

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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.