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Finding the Fourth Proportional to 6,866.14, 9,476.64 and 3,881.98

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Solution

The fourth proportional to 6,866.14, 9,476.64 and 3,881.98 is: 5,357.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,866.14 : 9,476.64 = 3,881.98 : x
  2. Step 2: Convert to fraction form
    6,866.14/9,476.64 = 3,881.98/x
  3. Step 3: Cross multiply
    6,866.14x = 9,476.64 × 3,881.98
  4. Step 4: Simplify right side
    6,866.14x = 36,788,126.95
  5. Step 5: Solve for x
    x = 36,788,126.95/6,866.14
  6. Step 6: Final answer
    x = 5,357.91

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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.