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Finding the Fourth Proportional to 18,653.44, 27,956.40 and 9,892.48

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Solution

The fourth proportional to 18,653.44, 27,956.40 and 9,892.48 is: 14,826.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,653.44 : 27,956.40 = 9,892.48 : x
  2. Step 2: Convert to fraction form
    18,653.44/27,956.40 = 9,892.48/x
  3. Step 3: Cross multiply
    18,653.44x = 27,956.40 × 9,892.48
  4. Step 4: Simplify right side
    18,653.44x = 276,558,127.87
  5. Step 5: Solve for x
    x = 276,558,127.87/18,653.44
  6. Step 6: Final answer
    x = 14,826.12

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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.