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Finding the Fourth Proportional to 32,475.60, 48,757.20 and 20,811.60

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Solution

The fourth proportional to 32,475.60, 48,757.20 and 20,811.60 is: 31,245.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,475.60 : 48,757.20 = 20,811.60 : x
  2. Step 2: Convert to fraction form
    32,475.60/48,757.20 = 20,811.60/x
  3. Step 3: Cross multiply
    32,475.60x = 48,757.20 × 20,811.60
  4. Step 4: Simplify right side
    32,475.60x = 1,014,715,343.52
  5. Step 5: Solve for x
    x = 1,014,715,343.52/32,475.60
  6. Step 6: Final answer
    x = 31,245.47

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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.