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Finding the Fourth Proportional to 38,418.80, 57,714.60 and 26,754.80

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Solution

The fourth proportional to 38,418.80, 57,714.60 and 26,754.80 is: 40,192.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,418.80 : 57,714.60 = 26,754.80 : x
  2. Step 2: Convert to fraction form
    38,418.80/57,714.60 = 26,754.80/x
  3. Step 3: Cross multiply
    38,418.80x = 57,714.60 × 26,754.80
  4. Step 4: Simplify right side
    38,418.80x = 1,544,142,580.08
  5. Step 5: Solve for x
    x = 1,544,142,580.08/38,418.80
  6. Step 6: Final answer
    x = 40,192.37

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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.