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Finding the Fourth Proportional to 8,660.88, 11,952.04 and 4,682

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Solution

The fourth proportional to 8,660.88, 11,952.04 and 4,682 is: 6,461.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,660.88 : 11,952.04 = 4,682 : x
  2. Step 2: Convert to fraction form
    8,660.88/11,952.04 = 4,682/x
  3. Step 3: Cross multiply
    8,660.88x = 11,952.04 × 4,682
  4. Step 4: Simplify right side
    8,660.88x = 55,959,451.28
  5. Step 5: Solve for x
    x = 55,959,451.28/8,660.88
  6. Step 6: Final answer
    x = 6,461.17

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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.