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Finding the Fourth Proportional to 22,421.99, 30,943.73 and 12,350.42

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Solution

The fourth proportional to 22,421.99, 30,943.73 and 12,350.42 is: 17,044.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,421.99 : 30,943.73 = 12,350.42 : x
  2. Step 2: Convert to fraction form
    22,421.99/30,943.73 = 12,350.42/x
  3. Step 3: Cross multiply
    22,421.99x = 30,943.73 × 12,350.42
  4. Step 4: Simplify right side
    22,421.99x = 382,167,845.40
  5. Step 5: Solve for x
    x = 382,167,845.40/22,421.99
  6. Step 6: Final answer
    x = 17,044.34

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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.