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Finding the Fourth Proportional to 63,652.79, 87,847.81 and 36,431.37

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Solution

The fourth proportional to 63,652.79, 87,847.81 and 36,431.37 is: 50,279.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,652.79 : 87,847.81 = 36,431.37 : x
  2. Step 2: Convert to fraction form
    63,652.79/87,847.81 = 36,431.37/x
  3. Step 3: Cross multiply
    63,652.79x = 87,847.81 × 36,431.37
  4. Step 4: Simplify right side
    63,652.79x = 3,200,415,978.72
  5. Step 5: Solve for x
    x = 3,200,415,978.72/63,652.79
  6. Step 6: Final answer
    x = 50,279.27

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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.