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Finding the Fourth Proportional to 22,188.44, 30,618.74 and 12,627

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Solution

The fourth proportional to 22,188.44, 30,618.74 and 12,627 is: 17,424.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,188.44 : 30,618.74 = 12,627 : x
  2. Step 2: Convert to fraction form
    22,188.44/30,618.74 = 12,627/x
  3. Step 3: Cross multiply
    22,188.44x = 30,618.74 × 12,627
  4. Step 4: Simplify right side
    22,188.44x = 386,622,829.98
  5. Step 5: Solve for x
    x = 386,622,829.98/22,188.44
  6. Step 6: Final answer
    x = 17,424.52

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Why These Related Problems?

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