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Finding the Fourth Proportional to 5,747.91, 7,930.71 and 3,508.97

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Solution

The fourth proportional to 5,747.91, 7,930.71 and 3,508.97 is: 4,841.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,747.91 : 7,930.71 = 3,508.97 : x
  2. Step 2: Convert to fraction form
    5,747.91/7,930.71 = 3,508.97/x
  3. Step 3: Cross multiply
    5,747.91x = 7,930.71 × 3,508.97
  4. Step 4: Simplify right side
    5,747.91x = 27,828,623.47
  5. Step 5: Solve for x
    x = 27,828,623.47/5,747.91
  6. Step 6: Final answer
    x = 4,841.52

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1.5x scale

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.