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Finding the Fourth Proportional to 6,867.62, 9,477.90 and 3,883.98

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Solution

The fourth proportional to 6,867.62, 9,477.90 and 3,883.98 is: 5,360.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,867.62 : 9,477.90 = 3,883.98 : x
  2. Step 2: Convert to fraction form
    6,867.62/9,477.90 = 3,883.98/x
  3. Step 3: Cross multiply
    6,867.62x = 9,477.90 × 3,883.98
  4. Step 4: Simplify right side
    6,867.62x = 36,811,954.62
  5. Step 5: Solve for x
    x = 36,811,954.62/6,867.62
  6. Step 6: Final answer
    x = 5,360.22

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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.