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Finding the Fourth Proportional to 18,481.41, 25,504.36 and 9,983.53

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Solution

The fourth proportional to 18,481.41, 25,504.36 and 9,983.53 is: 13,777.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,481.41 : 25,504.36 = 9,983.53 : x
  2. Step 2: Convert to fraction form
    18,481.41/25,504.36 = 9,983.53/x
  3. Step 3: Cross multiply
    18,481.41x = 25,504.36 × 9,983.53
  4. Step 4: Simplify right side
    18,481.41x = 254,623,543.19
  5. Step 5: Solve for x
    x = 254,623,543.19/18,481.41
  6. Step 6: Final answer
    x = 13,777.28

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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.