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Finding the Fourth Proportional to 17,998.43, 24,821.09 and 11,938.01

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Solution

The fourth proportional to 17,998.43, 24,821.09 and 11,938.01 is: 16,463.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,998.43 : 24,821.09 = 11,938.01 : x
  2. Step 2: Convert to fraction form
    17,998.43/24,821.09 = 11,938.01/x
  3. Step 3: Cross multiply
    17,998.43x = 24,821.09 × 11,938.01
  4. Step 4: Simplify right side
    17,998.43x = 296,314,360.94
  5. Step 5: Solve for x
    x = 296,314,360.94/17,998.43
  6. Step 6: Final answer
    x = 16,463.34

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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.