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Finding the Fourth Proportional to 18,361.52, 27,529.92 and 10,971.14

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Solution

The fourth proportional to 18,361.52, 27,529.92 and 10,971.14 is: 16,449.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,361.52 : 27,529.92 = 10,971.14 : x
  2. Step 2: Convert to fraction form
    18,361.52/27,529.92 = 10,971.14/x
  3. Step 3: Cross multiply
    18,361.52x = 27,529.92 × 10,971.14
  4. Step 4: Simplify right side
    18,361.52x = 302,034,606.51
  5. Step 5: Solve for x
    x = 302,034,606.51/18,361.52
  6. Step 6: Final answer
    x = 16,449.32

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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.