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Finding the Fourth Proportional to 32,571.58, 48,939.38 and 20,730.80

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Solution

The fourth proportional to 32,571.58, 48,939.38 and 20,730.80 is: 31,148.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,571.58 : 48,939.38 = 20,730.80 : x
  2. Step 2: Convert to fraction form
    32,571.58/48,939.38 = 20,730.80/x
  3. Step 3: Cross multiply
    32,571.58x = 48,939.38 × 20,730.80
  4. Step 4: Simplify right side
    32,571.58x = 1,014,552,150.55
  5. Step 5: Solve for x
    x = 1,014,552,150.55/32,571.58
  6. Step 6: Final answer
    x = 31,148.39

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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.