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Finding the Fourth Proportional to 38,959.80, 53,765.10 and 22,192.44

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Solution

The fourth proportional to 38,959.80, 53,765.10 and 22,192.44 is: 30,625.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,959.80 : 53,765.10 = 22,192.44 : x
  2. Step 2: Convert to fraction form
    38,959.80/53,765.10 = 22,192.44/x
  3. Step 3: Cross multiply
    38,959.80x = 53,765.10 × 22,192.44
  4. Step 4: Simplify right side
    38,959.80x = 1,193,178,755.84
  5. Step 5: Solve for x
    x = 1,193,178,755.84/38,959.80
  6. Step 6: Final answer
    x = 30,625.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.