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Finding the Fourth Proportional to 22,405.80, 33,608.70 and 22,060.20

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Solution

The fourth proportional to 22,405.80, 33,608.70 and 22,060.20 is: 33,090.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,405.80 : 33,608.70 = 22,060.20 : x
  2. Step 2: Convert to fraction form
    22,405.80/33,608.70 = 22,060.20/x
  3. Step 3: Cross multiply
    22,405.80x = 33,608.70 × 22,060.20
  4. Step 4: Simplify right side
    22,405.80x = 741,414,643.74
  5. Step 5: Solve for x
    x = 741,414,643.74/22,405.80
  6. Step 6: Final answer
    x = 33,090.30

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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.