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Finding the Fourth Proportional to 26,563.80, 39,905.10 and 22,189.80

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Solution

The fourth proportional to 26,563.80, 39,905.10 and 22,189.80 is: 33,334.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,563.80 : 39,905.10 = 22,189.80 : x
  2. Step 2: Convert to fraction form
    26,563.80/39,905.10 = 22,189.80/x
  3. Step 3: Cross multiply
    26,563.80x = 39,905.10 × 22,189.80
  4. Step 4: Simplify right side
    26,563.80x = 885,486,187.98
  5. Step 5: Solve for x
    x = 885,486,187.98/26,563.80
  6. Step 6: Final answer
    x = 33,334.32

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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.