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Finding the Fourth Proportional to 8,852.72, 12,216.36 and 4,874

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Solution

The fourth proportional to 8,852.72, 12,216.36 and 4,874 is: 6,725.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,852.72 : 12,216.36 = 4,874 : x
  2. Step 2: Convert to fraction form
    8,852.72/12,216.36 = 4,874/x
  3. Step 3: Cross multiply
    8,852.72x = 12,216.36 × 4,874
  4. Step 4: Simplify right side
    8,852.72x = 59,542,538.64
  5. Step 5: Solve for x
    x = 59,542,538.64/8,852.72
  6. Step 6: Final answer
    x = 6,725.90

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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.