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Finding the Fourth Proportional to 32,402.72, 48,493.92 and 20,550.80

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Solution

The fourth proportional to 32,402.72, 48,493.92 and 20,550.80 is: 30,756.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,402.72 : 48,493.92 = 20,550.80 : x
  2. Step 2: Convert to fraction form
    32,402.72/48,493.92 = 20,550.80/x
  3. Step 3: Cross multiply
    32,402.72x = 48,493.92 × 20,550.80
  4. Step 4: Simplify right side
    32,402.72x = 996,588,851.14
  5. Step 5: Solve for x
    x = 996,588,851.14/32,402.72
  6. Step 6: Final answer
    x = 30,756.33

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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.