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Finding the Fourth Proportional to 67,230.60, 100,845.96 and 17,310.80

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Solution

The fourth proportional to 67,230.60, 100,845.96 and 17,310.80 is: 25,966.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,230.60 : 100,845.96 = 17,310.80 : x
  2. Step 2: Convert to fraction form
    67,230.60/100,845.96 = 17,310.80/x
  3. Step 3: Cross multiply
    67,230.60x = 100,845.96 × 17,310.80
  4. Step 4: Simplify right side
    67,230.60x = 1,745,724,244.37
  5. Step 5: Solve for x
    x = 1,745,724,244.37/67,230.60
  6. Step 6: Final answer
    x = 25,966.22

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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.