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Finding the Fourth Proportional to 67,861.44, 101,792.32 and 18,613.44

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Solution

The fourth proportional to 67,861.44, 101,792.32 and 18,613.44 is: 27,920.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,861.44 : 101,792.32 = 18,613.44 : x
  2. Step 2: Convert to fraction form
    67,861.44/101,792.32 = 18,613.44/x
  3. Step 3: Cross multiply
    67,861.44x = 101,792.32 × 18,613.44
  4. Step 4: Simplify right side
    67,861.44x = 1,894,705,240.78
  5. Step 5: Solve for x
    x = 1,894,705,240.78/67,861.44
  6. Step 6: Final answer
    x = 27,920.20

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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.