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Finding the Fourth Proportional to 37,279.44, 51,447.96 and 20,512.44

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Solution

The fourth proportional to 37,279.44, 51,447.96 and 20,512.44 is: 28,308.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,279.44 : 51,447.96 = 20,512.44 : x
  2. Step 2: Convert to fraction form
    37,279.44/51,447.96 = 20,512.44/x
  3. Step 3: Cross multiply
    37,279.44x = 51,447.96 × 20,512.44
  4. Step 4: Simplify right side
    37,279.44x = 1,055,323,192.62
  5. Step 5: Solve for x
    x = 1,055,323,192.62/37,279.44
  6. Step 6: Final answer
    x = 28,308.45

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1.5x scale

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.