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Finding the Fourth Proportional to 22,241.16, 30,622.86 and 18,876.96

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Solution

The fourth proportional to 22,241.16, 30,622.86 and 18,876.96 is: 25,990.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,241.16 : 30,622.86 = 18,876.96 : x
  2. Step 2: Convert to fraction form
    22,241.16/30,622.86 = 18,876.96/x
  3. Step 3: Cross multiply
    22,241.16x = 30,622.86 × 18,876.96
  4. Step 4: Simplify right side
    22,241.16x = 578,066,503.31
  5. Step 5: Solve for x
    x = 578,066,503.31/22,241.16
  6. Step 6: Final answer
    x = 25,990.84

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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.