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Finding the Fourth Proportional to 40,843.68, 61,265.44 and 12,766.12

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Solution

The fourth proportional to 40,843.68, 61,265.44 and 12,766.12 is: 19,149.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,843.68 : 61,265.44 = 12,766.12 : x
  2. Step 2: Convert to fraction form
    40,843.68/61,265.44 = 12,766.12/x
  3. Step 3: Cross multiply
    40,843.68x = 61,265.44 × 12,766.12
  4. Step 4: Simplify right side
    40,843.68x = 782,121,958.89
  5. Step 5: Solve for x
    x = 782,121,958.89/40,843.68
  6. Step 6: Final answer
    x = 19,149.15

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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.