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Finding the Fourth Proportional to 18,262.68, 25,189.48 and 17,653

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Solution

The fourth proportional to 18,262.68, 25,189.48 and 17,653 is: 24,348.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,262.68 : 25,189.48 = 17,653 : x
  2. Step 2: Convert to fraction form
    18,262.68/25,189.48 = 17,653/x
  3. Step 3: Cross multiply
    18,262.68x = 25,189.48 × 17,653
  4. Step 4: Simplify right side
    18,262.68x = 444,669,890.44
  5. Step 5: Solve for x
    x = 444,669,890.44/18,262.68
  6. Step 6: Final answer
    x = 24,348.56

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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.