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Finding the Fourth Proportional to 18,379.34, 27,569.94 and 5,232.64

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Solution

The fourth proportional to 18,379.34, 27,569.94 and 5,232.64 is: 7,849.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,379.34 : 27,569.94 = 5,232.64 : x
  2. Step 2: Convert to fraction form
    18,379.34/27,569.94 = 5,232.64/x
  3. Step 3: Cross multiply
    18,379.34x = 27,569.94 × 5,232.64
  4. Step 4: Simplify right side
    18,379.34x = 144,263,570.84
  5. Step 5: Solve for x
    x = 144,263,570.84/18,379.34
  6. Step 6: Final answer
    x = 7,849.22

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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.