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Finding the Fourth Proportional to 34,991.49, 48,274.48 and 21,539.37

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Solution

The fourth proportional to 34,991.49, 48,274.48 and 21,539.37 is: 29,715.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,991.49 : 48,274.48 = 21,539.37 : x
  2. Step 2: Convert to fraction form
    34,991.49/48,274.48 = 21,539.37/x
  3. Step 3: Cross multiply
    34,991.49x = 48,274.48 × 21,539.37
  4. Step 4: Simplify right side
    34,991.49x = 1,039,801,822.69
  5. Step 5: Solve for x
    x = 1,039,801,822.69/34,991.49
  6. Step 6: Final answer
    x = 29,715.85

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Why These Related Problems?

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