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Finding the Fourth Proportional to 18,473.88, 27,707.49 and 5,323.02

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Solution

The fourth proportional to 18,473.88, 27,707.49 and 5,323.02 is: 7,983.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,473.88 : 27,707.49 = 5,323.02 : x
  2. Step 2: Convert to fraction form
    18,473.88/27,707.49 = 5,323.02/x
  3. Step 3: Cross multiply
    18,473.88x = 27,707.49 × 5,323.02
  4. Step 4: Simplify right side
    18,473.88x = 147,487,523.42
  5. Step 5: Solve for x
    x = 147,487,523.42/18,473.88
  6. Step 6: Final answer
    x = 7,983.57

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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.