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Finding the Fourth Proportional to 18,349.80, 27,524.70 and 13,392.60

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Solution

The fourth proportional to 18,349.80, 27,524.70 and 13,392.60 is: 20,088.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,349.80 : 27,524.70 = 13,392.60 : x
  2. Step 2: Convert to fraction form
    18,349.80/27,524.70 = 13,392.60/x
  3. Step 3: Cross multiply
    18,349.80x = 27,524.70 × 13,392.60
  4. Step 4: Simplify right side
    18,349.80x = 368,627,297.22
  5. Step 5: Solve for x
    x = 368,627,297.22/18,349.80
  6. Step 6: Final answer
    x = 20,088.90

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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.