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Finding the Fourth Proportional to 26,860.97, 40,291.46 and 8,392.97

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Solution

The fourth proportional to 26,860.97, 40,291.46 and 8,392.97 is: 12,589.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,860.97 : 40,291.46 = 8,392.97 : x
  2. Step 2: Convert to fraction form
    26,860.97/40,291.46 = 8,392.97/x
  3. Step 3: Cross multiply
    26,860.97x = 40,291.46 × 8,392.97
  4. Step 4: Simplify right side
    26,860.97x = 338,164,771.61
  5. Step 5: Solve for x
    x = 338,164,771.61/26,860.97
  6. Step 6: Final answer
    x = 12,589.45

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Similar ratio
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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.