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Finding the Fourth Proportional to 35,606.72, 49,132.96 and 19,689

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Solution

The fourth proportional to 35,606.72, 49,132.96 and 19,689 is: 27,168.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,606.72 : 49,132.96 = 19,689 : x
  2. Step 2: Convert to fraction form
    35,606.72/49,132.96 = 19,689/x
  3. Step 3: Cross multiply
    35,606.72x = 49,132.96 × 19,689
  4. Step 4: Simplify right side
    35,606.72x = 967,378,849.44
  5. Step 5: Solve for x
    x = 967,378,849.44/35,606.72
  6. Step 6: Final answer
    x = 27,168.43

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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.