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Finding the Fourth Proportional to 33,808.62, 50,711.70 and 12,751.93

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Solution

The fourth proportional to 33,808.62, 50,711.70 and 12,751.93 is: 19,127.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,808.62 : 50,711.70 = 12,751.93 : x
  2. Step 2: Convert to fraction form
    33,808.62/50,711.70 = 12,751.93/x
  3. Step 3: Cross multiply
    33,808.62x = 50,711.70 × 12,751.93
  4. Step 4: Simplify right side
    33,808.62x = 646,672,159.79
  5. Step 5: Solve for x
    x = 646,672,159.79/33,808.62
  6. Step 6: Final answer
    x = 19,127.43

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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.