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Finding the Fourth Proportional to 18,374.72, 27,563.54 and 5,722.92

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Solution

The fourth proportional to 18,374.72, 27,563.54 and 5,722.92 is: 8,584.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,374.72 : 27,563.54 = 5,722.92 : x
  2. Step 2: Convert to fraction form
    18,374.72/27,563.54 = 5,722.92/x
  3. Step 3: Cross multiply
    18,374.72x = 27,563.54 × 5,722.92
  4. Step 4: Simplify right side
    18,374.72x = 157,743,905.72
  5. Step 5: Solve for x
    x = 157,743,905.72/18,374.72
  6. Step 6: Final answer
    x = 8,584.84

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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.