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Finding the Fourth Proportional to 11,691.72, 17,537.05 and 4,295.63

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Solution

The fourth proportional to 11,691.72, 17,537.05 and 4,295.63 is: 6,443.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,691.72 : 17,537.05 = 4,295.63 : x
  2. Step 2: Convert to fraction form
    11,691.72/17,537.05 = 4,295.63/x
  3. Step 3: Cross multiply
    11,691.72x = 17,537.05 × 4,295.63
  4. Step 4: Simplify right side
    11,691.72x = 75,332,727.30
  5. Step 5: Solve for x
    x = 75,332,727.30/11,691.72
  6. Step 6: Final answer
    x = 6,443.25

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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.