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Finding the Fourth Proportional to 38,074.60, 57,105.60 and 12,773.80

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Solution

The fourth proportional to 38,074.60, 57,105.60 and 12,773.80 is: 19,158.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,074.60 : 57,105.60 = 12,773.80 : x
  2. Step 2: Convert to fraction form
    38,074.60/57,105.60 = 12,773.80/x
  3. Step 3: Cross multiply
    38,074.60x = 57,105.60 × 12,773.80
  4. Step 4: Simplify right side
    38,074.60x = 729,455,513.28
  5. Step 5: Solve for x
    x = 729,455,513.28/38,074.60
  6. Step 6: Final answer
    x = 19,158.59

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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.