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Finding the Fourth Proportional to 22,274.74, 30,669.01 and 18,910.90

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Solution

The fourth proportional to 22,274.74, 30,669.01 and 18,910.90 is: 26,037.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,274.74 : 30,669.01 = 18,910.90 : x
  2. Step 2: Convert to fraction form
    22,274.74/30,669.01 = 18,910.90/x
  3. Step 3: Cross multiply
    22,274.74x = 30,669.01 × 18,910.90
  4. Step 4: Simplify right side
    22,274.74x = 579,978,581.21
  5. Step 5: Solve for x
    x = 579,978,581.21/22,274.74
  6. Step 6: Final answer
    x = 26,037.50

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.