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Finding the Fourth Proportional to 18,070.44, 27,112.14 and 7,683

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Solution

The fourth proportional to 18,070.44, 27,112.14 and 7,683 is: 11,527.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,070.44 : 27,112.14 = 7,683 : x
  2. Step 2: Convert to fraction form
    18,070.44/27,112.14 = 7,683/x
  3. Step 3: Cross multiply
    18,070.44x = 27,112.14 × 7,683
  4. Step 4: Simplify right side
    18,070.44x = 208,302,571.62
  5. Step 5: Solve for x
    x = 208,302,571.62/18,070.44
  6. Step 6: Final answer
    x = 11,527.26

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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.