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Finding the Fourth Proportional to 33,300.90, 49,939.20 and 16,655.40

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Solution

The fourth proportional to 33,300.90, 49,939.20 and 16,655.40 is: 24,977.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,300.90 : 49,939.20 = 16,655.40 : x
  2. Step 2: Convert to fraction form
    33,300.90/49,939.20 = 16,655.40/x
  3. Step 3: Cross multiply
    33,300.90x = 49,939.20 × 16,655.40
  4. Step 4: Simplify right side
    33,300.90x = 831,757,351.68
  5. Step 5: Solve for x
    x = 831,757,351.68/33,300.90
  6. Step 6: Final answer
    x = 24,977.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.