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Finding the Fourth Proportional to 17,751.61, 24,491.50 and 11,784.43

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Solution

The fourth proportional to 17,751.61, 24,491.50 and 11,784.43 is: 16,258.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,751.61 : 24,491.50 = 11,784.43 : x
  2. Step 2: Convert to fraction form
    17,751.61/24,491.50 = 11,784.43/x
  3. Step 3: Cross multiply
    17,751.61x = 24,491.50 × 11,784.43
  4. Step 4: Simplify right side
    17,751.61x = 288,618,248.93
  5. Step 5: Solve for x
    x = 288,618,248.93/17,751.61
  6. Step 6: Final answer
    x = 16,258.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.