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Finding the Fourth Proportional to 26,761.92, 36,973.44 and 18,422.88

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Solution

The fourth proportional to 26,761.92, 36,973.44 and 18,422.88 is: 25,452.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,761.92 : 36,973.44 = 18,422.88 : x
  2. Step 2: Convert to fraction form
    26,761.92/36,973.44 = 18,422.88/x
  3. Step 3: Cross multiply
    26,761.92x = 36,973.44 × 18,422.88
  4. Step 4: Simplify right side
    26,761.92x = 681,157,248.31
  5. Step 5: Solve for x
    x = 681,157,248.31/26,761.92
  6. Step 6: Final answer
    x = 25,452.48

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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.