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Finding the Fourth Proportional to 32,572.58, 48,940.88 and 20,731.80

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Solution

The fourth proportional to 32,572.58, 48,940.88 and 20,731.80 is: 31,149.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,572.58 : 48,940.88 = 20,731.80 : x
  2. Step 2: Convert to fraction form
    32,572.58/48,940.88 = 20,731.80/x
  3. Step 3: Cross multiply
    32,572.58x = 48,940.88 × 20,731.80
  4. Step 4: Simplify right side
    32,572.58x = 1,014,632,432.33
  5. Step 5: Solve for x
    x = 1,014,632,432.33/32,572.58
  6. Step 6: Final answer
    x = 31,149.90

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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.