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Finding the Fourth Proportional to 32,450.64, 48,671.64 and 20,640.84

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Solution

The fourth proportional to 32,450.64, 48,671.64 and 20,640.84 is: 30,958.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,450.64 : 48,671.64 = 20,640.84 : x
  2. Step 2: Convert to fraction form
    32,450.64/48,671.64 = 20,640.84/x
  3. Step 3: Cross multiply
    32,450.64x = 48,671.64 × 20,640.84
  4. Step 4: Simplify right side
    32,450.64x = 1,004,623,533.78
  5. Step 5: Solve for x
    x = 1,004,623,533.78/32,450.64
  6. Step 6: Final answer
    x = 30,958.51

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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.