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Finding the Fourth Proportional to 18,349.46, 25,316.15 and 12,682.17

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Solution

The fourth proportional to 18,349.46, 25,316.15 and 12,682.17 is: 17,497.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,349.46 : 25,316.15 = 12,682.17 : x
  2. Step 2: Convert to fraction form
    18,349.46/25,316.15 = 12,682.17/x
  3. Step 3: Cross multiply
    18,349.46x = 25,316.15 × 12,682.17
  4. Step 4: Simplify right side
    18,349.46x = 321,063,591.46
  5. Step 5: Solve for x
    x = 321,063,591.46/18,349.46
  6. Step 6: Final answer
    x = 17,497.17

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.