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Finding the Fourth Proportional to 33,277.80, 49,916.70 and 11,091.90

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Solution

The fourth proportional to 33,277.80, 49,916.70 and 11,091.90 is: 16,637.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,277.80 : 49,916.70 = 11,091.90 : x
  2. Step 2: Convert to fraction form
    33,277.80/49,916.70 = 11,091.90/x
  3. Step 3: Cross multiply
    33,277.80x = 49,916.70 × 11,091.90
  4. Step 4: Simplify right side
    33,277.80x = 553,671,044.73
  5. Step 5: Solve for x
    x = 553,671,044.73/33,277.80
  6. Step 6: Final answer
    x = 16,637.85

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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.