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Finding the Fourth Proportional to 38,695.20, 58,042.80 and 23,104.80

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Solution

The fourth proportional to 38,695.20, 58,042.80 and 23,104.80 is: 34,657.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,695.20 : 58,042.80 = 23,104.80 : x
  2. Step 2: Convert to fraction form
    38,695.20/58,042.80 = 23,104.80/x
  3. Step 3: Cross multiply
    38,695.20x = 58,042.80 × 23,104.80
  4. Step 4: Simplify right side
    38,695.20x = 1,341,067,285.44
  5. Step 5: Solve for x
    x = 1,341,067,285.44/38,695.20
  6. Step 6: Final answer
    x = 34,657.20

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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.