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Finding the Fourth Proportional to 45,245.80, 67,812.88 and 32,808.52

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Solution

The fourth proportional to 45,245.80, 67,812.88 and 32,808.52 is: 49,172.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,245.80 : 67,812.88 = 32,808.52 : x
  2. Step 2: Convert to fraction form
    45,245.80/67,812.88 = 32,808.52/x
  3. Step 3: Cross multiply
    45,245.80x = 67,812.88 × 32,808.52
  4. Step 4: Simplify right side
    45,245.80x = 2,224,840,229.74
  5. Step 5: Solve for x
    x = 2,224,840,229.74/45,245.80
  6. Step 6: Final answer
    x = 49,172.30

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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.