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Finding the Fourth Proportional to 18,552.80, 27,829.16 and 12,324.96

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Solution

The fourth proportional to 18,552.80, 27,829.16 and 12,324.96 is: 18,487.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,552.80 : 27,829.16 = 12,324.96 : x
  2. Step 2: Convert to fraction form
    18,552.80/27,829.16 = 12,324.96/x
  3. Step 3: Cross multiply
    18,552.80x = 27,829.16 × 12,324.96
  4. Step 4: Simplify right side
    18,552.80x = 342,993,283.83
  5. Step 5: Solve for x
    x = 342,993,283.83/18,552.80
  6. Step 6: Final answer
    x = 18,487.41

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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.