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Finding the Fourth Proportional to 18,597.96, 27,906.57 and 12,362.31

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Solution

The fourth proportional to 18,597.96, 27,906.57 and 12,362.31 is: 18,549.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,597.96 : 27,906.57 = 12,362.31 : x
  2. Step 2: Convert to fraction form
    18,597.96/27,906.57 = 12,362.31/x
  3. Step 3: Cross multiply
    18,597.96x = 27,906.57 × 12,362.31
  4. Step 4: Simplify right side
    18,597.96x = 344,989,669.38
  5. Step 5: Solve for x
    x = 344,989,669.38/18,597.96
  6. Step 6: Final answer
    x = 18,549.87

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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.