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Finding the Fourth Proportional to 23,772.60, 35,658.90 and 13,906.80

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Solution

The fourth proportional to 23,772.60, 35,658.90 and 13,906.80 is: 20,860.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,772.60 : 35,658.90 = 13,906.80 : x
  2. Step 2: Convert to fraction form
    23,772.60/35,658.90 = 13,906.80/x
  3. Step 3: Cross multiply
    23,772.60x = 35,658.90 × 13,906.80
  4. Step 4: Simplify right side
    23,772.60x = 495,901,190.52
  5. Step 5: Solve for x
    x = 495,901,190.52/23,772.60
  6. Step 6: Final answer
    x = 20,860.20

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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.