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Finding the Fourth Proportional to 38,218.40, 57,370.80 and 22,644.80

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Solution

The fourth proportional to 38,218.40, 57,370.80 and 22,644.80 is: 33,992.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,218.40 : 57,370.80 = 22,644.80 : x
  2. Step 2: Convert to fraction form
    38,218.40/57,370.80 = 22,644.80/x
  3. Step 3: Cross multiply
    38,218.40x = 57,370.80 × 22,644.80
  4. Step 4: Simplify right side
    38,218.40x = 1,299,150,291.84
  5. Step 5: Solve for x
    x = 1,299,150,291.84/38,218.40
  6. Step 6: Final answer
    x = 33,992.80

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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.