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Finding the Fourth Proportional to 18,149.60, 27,347.90 and 14,934.80

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Solution

The fourth proportional to 18,149.60, 27,347.90 and 14,934.80 is: 22,503.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,149.60 : 27,347.90 = 14,934.80 : x
  2. Step 2: Convert to fraction form
    18,149.60/27,347.90 = 14,934.80/x
  3. Step 3: Cross multiply
    18,149.60x = 27,347.90 × 14,934.80
  4. Step 4: Simplify right side
    18,149.60x = 408,435,416.92
  5. Step 5: Solve for x
    x = 408,435,416.92/18,149.60
  6. Step 6: Final answer
    x = 22,503.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.