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Finding the Fourth Proportional to 12,627.62, 18,944.93 and 5,512.47

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Solution

The fourth proportional to 12,627.62, 18,944.93 and 5,512.47 is: 8,270.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,627.62 : 18,944.93 = 5,512.47 : x
  2. Step 2: Convert to fraction form
    12,627.62/18,944.93 = 5,512.47/x
  3. Step 3: Cross multiply
    12,627.62x = 18,944.93 × 5,512.47
  4. Step 4: Simplify right side
    12,627.62x = 104,433,358.28
  5. Step 5: Solve for x
    x = 104,433,358.28/12,627.62
  6. Step 6: Final answer
    x = 8,270.23

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1.5x scale

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.