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Finding the Fourth Proportional to 17,998.96, 26,997.71 and 10,099.79

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Solution

The fourth proportional to 17,998.96, 26,997.71 and 10,099.79 is: 15,149.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,998.96 : 26,997.71 = 10,099.79 : x
  2. Step 2: Convert to fraction form
    17,998.96/26,997.71 = 10,099.79/x
  3. Step 3: Cross multiply
    17,998.96x = 26,997.71 × 10,099.79
  4. Step 4: Simplify right side
    17,998.96x = 272,671,066.49
  5. Step 5: Solve for x
    x = 272,671,066.49/17,998.96
  6. Step 6: Final answer
    x = 15,149.27

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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.