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Finding the Fourth Proportional to 38,228.40, 57,385.80 and 22,654.80

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Solution

The fourth proportional to 38,228.40, 57,385.80 and 22,654.80 is: 34,007.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,228.40 : 57,385.80 = 22,654.80 : x
  2. Step 2: Convert to fraction form
    38,228.40/57,385.80 = 22,654.80/x
  3. Step 3: Cross multiply
    38,228.40x = 57,385.80 × 22,654.80
  4. Step 4: Simplify right side
    38,228.40x = 1,300,063,821.84
  5. Step 5: Solve for x
    x = 1,300,063,821.84/38,228.40
  6. Step 6: Final answer
    x = 34,007.80

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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.