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Finding the Fourth Proportional to 18,468.84, 27,700.26 and 5,318.22

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Solution

The fourth proportional to 18,468.84, 27,700.26 and 5,318.22 is: 7,976.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,468.84 : 27,700.26 = 5,318.22 : x
  2. Step 2: Convert to fraction form
    18,468.84/27,700.26 = 5,318.22/x
  3. Step 3: Cross multiply
    18,468.84x = 27,700.26 × 5,318.22
  4. Step 4: Simplify right side
    18,468.84x = 147,316,076.74
  5. Step 5: Solve for x
    x = 147,316,076.74/18,468.84
  6. Step 6: Final answer
    x = 7,976.47

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.