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Finding the Fourth Proportional to 18,362.55, 27,540.18 and 8,998.54

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Solution

The fourth proportional to 18,362.55, 27,540.18 and 8,998.54 is: 13,496.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,362.55 : 27,540.18 = 8,998.54 : x
  2. Step 2: Convert to fraction form
    18,362.55/27,540.18 = 8,998.54/x
  3. Step 3: Cross multiply
    18,362.55x = 27,540.18 × 8,998.54
  4. Step 4: Simplify right side
    18,362.55x = 247,821,411.34
  5. Step 5: Solve for x
    x = 247,821,411.34/18,362.55
  6. Step 6: Final answer
    x = 13,496.02

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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.