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Finding the Fourth Proportional to 18,463.40, 27,685.32 and 8,063

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Solution

The fourth proportional to 18,463.40, 27,685.32 and 8,063 is: 12,090.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,463.40 : 27,685.32 = 8,063 : x
  2. Step 2: Convert to fraction form
    18,463.40/27,685.32 = 8,063/x
  3. Step 3: Cross multiply
    18,463.40x = 27,685.32 × 8,063
  4. Step 4: Simplify right side
    18,463.40x = 223,226,735.16
  5. Step 5: Solve for x
    x = 223,226,735.16/18,463.40
  6. Step 6: Final answer
    x = 12,090.23

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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.