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Finding the Fourth Proportional to 38,460.60, 57,690.90 and 33,276.60

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Solution

The fourth proportional to 38,460.60, 57,690.90 and 33,276.60 is: 49,914.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,460.60 : 57,690.90 = 33,276.60 : x
  2. Step 2: Convert to fraction form
    38,460.60/57,690.90 = 33,276.60/x
  3. Step 3: Cross multiply
    38,460.60x = 57,690.90 × 33,276.60
  4. Step 4: Simplify right side
    38,460.60x = 1,919,757,002.94
  5. Step 5: Solve for x
    x = 1,919,757,002.94/38,460.60
  6. Step 6: Final answer
    x = 49,914.90

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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.