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Finding the Fourth Proportional to 11,855.73, 17,783.47 and 4,834.09

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Solution

The fourth proportional to 11,855.73, 17,783.47 and 4,834.09 is: 7,251.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,855.73 : 17,783.47 = 4,834.09 : x
  2. Step 2: Convert to fraction form
    11,855.73/17,783.47 = 4,834.09/x
  3. Step 3: Cross multiply
    11,855.73x = 17,783.47 × 4,834.09
  4. Step 4: Simplify right side
    11,855.73x = 85,966,894.49
  5. Step 5: Solve for x
    x = 85,966,894.49/11,855.73
  6. Step 6: Final answer
    x = 7,251.08

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1.5x scale

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.