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Finding the Fourth Proportional to 67,245.48, 100,821.48 and 29,785.12

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Solution

The fourth proportional to 67,245.48, 100,821.48 and 29,785.12 is: 44,656.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,245.48 : 100,821.48 = 29,785.12 : x
  2. Step 2: Convert to fraction form
    67,245.48/100,821.48 = 29,785.12/x
  3. Step 3: Cross multiply
    67,245.48x = 100,821.48 × 29,785.12
  4. Step 4: Simplify right side
    67,245.48x = 3,002,979,880.38
  5. Step 5: Solve for x
    x = 3,002,979,880.38/67,245.48
  6. Step 6: Final answer
    x = 44,656.98

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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.