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Finding the Fourth Proportional to 18,194.40, 27,291.46 and 5,714.40

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Solution

The fourth proportional to 18,194.40, 27,291.46 and 5,714.40 is: 8,571.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,194.40 : 27,291.46 = 5,714.40 : x
  2. Step 2: Convert to fraction form
    18,194.40/27,291.46 = 5,714.40/x
  3. Step 3: Cross multiply
    18,194.40x = 27,291.46 × 5,714.40
  4. Step 4: Simplify right side
    18,194.40x = 155,954,168.28
  5. Step 5: Solve for x
    x = 155,954,168.28/18,194.40
  6. Step 6: Final answer
    x = 8,571.55

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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.