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Finding the Fourth Proportional to 35,452.01, 48,923.37 and 20,138.45

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Solution

The fourth proportional to 35,452.01, 48,923.37 and 20,138.45 is: 27,790.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,452.01 : 48,923.37 = 20,138.45 : x
  2. Step 2: Convert to fraction form
    35,452.01/48,923.37 = 20,138.45/x
  3. Step 3: Cross multiply
    35,452.01x = 48,923.37 × 20,138.45
  4. Step 4: Simplify right side
    35,452.01x = 985,240,840.58
  5. Step 5: Solve for x
    x = 985,240,840.58/35,452.01
  6. Step 6: Final answer
    x = 27,790.83

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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.