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Finding the Fourth Proportional to 18,600.60, 25,671.84 and 14,357.80

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Solution

The fourth proportional to 18,600.60, 25,671.84 and 14,357.80 is: 19,816.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,600.60 : 25,671.84 = 14,357.80 : x
  2. Step 2: Convert to fraction form
    18,600.60/25,671.84 = 14,357.80/x
  3. Step 3: Cross multiply
    18,600.60x = 25,671.84 × 14,357.80
  4. Step 4: Simplify right side
    18,600.60x = 368,591,144.35
  5. Step 5: Solve for x
    x = 368,591,144.35/18,600.60
  6. Step 6: Final answer
    x = 19,816.09

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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.