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Finding the Fourth Proportional to 33,666.98, 50,501.76 and 12,604.80

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Solution

The fourth proportional to 33,666.98, 50,501.76 and 12,604.80 is: 18,907.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,666.98 : 50,501.76 = 12,604.80 : x
  2. Step 2: Convert to fraction form
    33,666.98/50,501.76 = 12,604.80/x
  3. Step 3: Cross multiply
    33,666.98x = 50,501.76 × 12,604.80
  4. Step 4: Simplify right side
    33,666.98x = 636,564,584.45
  5. Step 5: Solve for x
    x = 636,564,584.45/33,666.98
  6. Step 6: Final answer
    x = 18,907.68

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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.