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Finding the Fourth Proportional to 26,686.42, 36,721.02 and 25,874.80

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Solution

The fourth proportional to 26,686.42, 36,721.02 and 25,874.80 is: 35,604.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,686.42 : 36,721.02 = 25,874.80 : x
  2. Step 2: Convert to fraction form
    26,686.42/36,721.02 = 25,874.80/x
  3. Step 3: Cross multiply
    26,686.42x = 36,721.02 × 25,874.80
  4. Step 4: Simplify right side
    26,686.42x = 950,149,048.30
  5. Step 5: Solve for x
    x = 950,149,048.30/26,686.42
  6. Step 6: Final answer
    x = 35,604.22

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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.