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Finding the Fourth Proportional to 30,361.80, 45,542.70 and 22,002.60

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Solution

The fourth proportional to 30,361.80, 45,542.70 and 22,002.60 is: 33,003.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,361.80 : 45,542.70 = 22,002.60 : x
  2. Step 2: Convert to fraction form
    30,361.80/45,542.70 = 22,002.60/x
  3. Step 3: Cross multiply
    30,361.80x = 45,542.70 × 22,002.60
  4. Step 4: Simplify right side
    30,361.80x = 1,002,057,811.02
  5. Step 5: Solve for x
    x = 1,002,057,811.02/30,361.80
  6. Step 6: Final answer
    x = 33,003.90

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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.