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Finding the Fourth Proportional to 39,694.40, 59,687.40 and 33,279.20

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Solution

The fourth proportional to 39,694.40, 59,687.40 and 33,279.20 is: 50,041.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,694.40 : 59,687.40 = 33,279.20 : x
  2. Step 2: Convert to fraction form
    39,694.40/59,687.40 = 33,279.20/x
  3. Step 3: Cross multiply
    39,694.40x = 59,687.40 × 33,279.20
  4. Step 4: Simplify right side
    39,694.40x = 1,986,348,922.08
  5. Step 5: Solve for x
    x = 1,986,348,922.08/39,694.40
  6. Step 6: Final answer
    x = 50,041.04

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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.