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Finding the Fourth Proportional to 39,863.60, 59,622.60 and 33,642.80

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Solution

The fourth proportional to 39,863.60, 59,622.60 and 33,642.80 is: 50,318.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,863.60 : 59,622.60 = 33,642.80 : x
  2. Step 2: Convert to fraction form
    39,863.60/59,622.60 = 33,642.80/x
  3. Step 3: Cross multiply
    39,863.60x = 59,622.60 × 33,642.80
  4. Step 4: Simplify right side
    39,863.60x = 2,005,871,207.28
  5. Step 5: Solve for x
    x = 2,005,871,207.28/39,863.60
  6. Step 6: Final answer
    x = 50,318.37

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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.