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Finding the Fourth Proportional to 6,881.82, 9,497.34 and 3,897.96

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Solution

The fourth proportional to 6,881.82, 9,497.34 and 3,897.96 is: 5,379.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,881.82 : 9,497.34 = 3,897.96 : x
  2. Step 2: Convert to fraction form
    6,881.82/9,497.34 = 3,897.96/x
  3. Step 3: Cross multiply
    6,881.82x = 9,497.34 × 3,897.96
  4. Step 4: Simplify right side
    6,881.82x = 37,020,251.43
  5. Step 5: Solve for x
    x = 37,020,251.43/6,881.82
  6. Step 6: Final answer
    x = 5,379.43

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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.