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Finding the Fourth Proportional to 18,436.64, 27,654.96 and 6,747.17

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Solution

The fourth proportional to 18,436.64, 27,654.96 and 6,747.17 is: 10,120.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,436.64 : 27,654.96 = 6,747.17 : x
  2. Step 2: Convert to fraction form
    18,436.64/27,654.96 = 6,747.17/x
  3. Step 3: Cross multiply
    18,436.64x = 27,654.96 × 6,747.17
  4. Step 4: Simplify right side
    18,436.64x = 186,592,716.46
  5. Step 5: Solve for x
    x = 186,592,716.46/18,436.64
  6. Step 6: Final answer
    x = 10,120.76

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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.