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Finding the Fourth Proportional to 33,107.60, 49,661.40 and 16,461.20

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Solution

The fourth proportional to 33,107.60, 49,661.40 and 16,461.20 is: 24,691.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,107.60 : 49,661.40 = 16,461.20 : x
  2. Step 2: Convert to fraction form
    33,107.60/49,661.40 = 16,461.20/x
  3. Step 3: Cross multiply
    33,107.60x = 49,661.40 × 16,461.20
  4. Step 4: Simplify right side
    33,107.60x = 817,486,237.68
  5. Step 5: Solve for x
    x = 817,486,237.68/33,107.60
  6. Step 6: Final answer
    x = 24,691.80

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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.