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Finding the Fourth Proportional to 34,625.40, 51,963.70 and 13,863.80

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Solution

The fourth proportional to 34,625.40, 51,963.70 and 13,863.80 is: 20,805.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,625.40 : 51,963.70 = 13,863.80 : x
  2. Step 2: Convert to fraction form
    34,625.40/51,963.70 = 13,863.80/x
  3. Step 3: Cross multiply
    34,625.40x = 51,963.70 × 13,863.80
  4. Step 4: Simplify right side
    34,625.40x = 720,414,344.06
  5. Step 5: Solve for x
    x = 720,414,344.06/34,625.40
  6. Step 6: Final answer
    x = 20,805.95

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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.