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Finding the Fourth Proportional to 36,629.78, 50,548.78 and 20,714.78

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Solution

The fourth proportional to 36,629.78, 50,548.78 and 20,714.78 is: 28,586.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,629.78 : 50,548.78 = 20,714.78 : x
  2. Step 2: Convert to fraction form
    36,629.78/50,548.78 = 20,714.78/x
  3. Step 3: Cross multiply
    36,629.78x = 50,548.78 × 20,714.78
  4. Step 4: Simplify right side
    36,629.78x = 1,047,106,856.97
  5. Step 5: Solve for x
    x = 1,047,106,856.97/36,629.78
  6. Step 6: Final answer
    x = 28,586.22

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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.